Equations involving Indices

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  • Опубликовано: 5 дек 2024

Комментарии • 87

  • @TomTom-yw4pm
    @TomTom-yw4pm Год назад +11

    Answer for (C) is 5∛5 in its simplest form.
    5x=125x¯¹/²
    x=25x¯¹/²
    x ÷x¯¹/²=25
    x¹+¹/²=25
    x³/²=25; squaring both sides
    x³=625 ; taking cubic root
    x= (5*5*5*5)¹/³
    x= 5∛5

  • @JuniorMawa-q9f
    @JuniorMawa-q9f 8 месяцев назад +4

    Clear explanation may good lord may bless you

  • @richardkapalu2711
    @richardkapalu2711 8 месяцев назад +4

    Do clear calculations on question b when cross multiplying ❤ 3:11

  • @Frplocker
    @Frplocker Год назад +2

    Thanks for helping me to solve my question sir

  • @kelvingarba8369
    @kelvingarba8369 Год назад +2

    Thank you so much this video is very helpful

  • @NamukuloMulomboi
    @NamukuloMulomboi 10 месяцев назад +1

    Great work sir, help on this question.if A+B+ C=180°, show that, sin2A+sin2B+sin2C=2sin(A+B) cos(A-B)+2sinC cosC.

  • @adgf1x
    @adgf1x 2 месяца назад

    2^(4x+2)=2^(6x-3)=>6x-3=4x+2=>x=5/2ans

  • @berthankhata1093
    @berthankhata1093 Год назад +2

    Sir please explain more on this one

  • @brandonfox9618
    @brandonfox9618 Год назад +2

    For a), I took a more complicated approach that involved using logarithms and I also ended up getting x = 5/2 (or x = 2.5).

  • @AkoulAguer-yr2bb
    @AkoulAguer-yr2bb 8 месяцев назад +1

    Thanks again so much for your help

  • @BensonNgulube-iy5wi
    @BensonNgulube-iy5wi Год назад +1

    Sir continue

  • @Emmanuelkisa-q5o
    @Emmanuelkisa-q5o Год назад +12

    Hw did u even cross multiply those things

    • @lorrainemasuku1025
      @lorrainemasuku1025 9 месяцев назад +1

      also ddnt understand the cross multiplication especially question b😢😢

    • @Herb144
      @Herb144 9 месяцев назад +1

      Same

    • @chimmzy297
      @chimmzy297 8 месяцев назад

      Same

    • @richardkapalu2711
      @richardkapalu2711 8 месяцев назад

      Am also wondering because cross multiply is failing

  • @NaomiMbusiro-f7h
    @NaomiMbusiro-f7h Год назад +3

    explain the 3rd quiz well🙁🙁🙁🙁

  • @Misshafsah
    @Misshafsah 2 месяца назад

    Thanks so much for your help❤

  • @StephanieChepkoech
    @StephanieChepkoech Месяц назад

    Excuse me sir I have not understood well how the laws of indices have applied in x.x^1/2...please help🙏🙏

  • @Emmanueloffor-z6c
    @Emmanueloffor-z6c 3 месяца назад +2

    Sorry please how is 2 raised to the power of 3 8 isn't it meant to be 2 raised to the power of 4

  • @KaupuMbendura
    @KaupuMbendura Месяц назад +1

    Good well

  • @BrandiSecondarySchool
    @BrandiSecondarySchool Год назад +3

    How can I calculate this:
    2 to the power of 5x - 1 = 1/8 to the power of x(x - 1)

    • @coolzeeee
      @coolzeeee 6 месяцев назад

      RHS will be 1/2^3 which gives 2^-3
      Then LHS is 2^(5x-1)as you said. So we can equate exponents since bases are equal... So 5x - 1 =-3
      5x =-2 and so x=-2/5 or - 0.4
      Let me know if that helps 😅
      Also checkout my channel for more helpful Math videos

  • @duvalmomo
    @duvalmomo 2 месяца назад

    Please clearify quadratic equations and functions in A level

  • @IsholaKaotharolabisi
    @IsholaKaotharolabisi 7 месяцев назад +2

    Please in question 2whereis the 2

  • @emmanuelochieng8908
    @emmanuelochieng8908 3 месяца назад

    What about when given 12^3x+1=4^3x+1 and told to find x?

  • @aarontembo2813
    @aarontembo2813 Год назад +1

    Thanks for helping me

  • @SamuelMutaawe-l9v
    @SamuelMutaawe-l9v 9 месяцев назад +2

    But I think u made a mistake on part 2 sir while cross multiplying

  • @wezieroc
    @wezieroc Год назад +3

    this mathematics is for engineering mathematics or what

  • @Tumusiime-mq1nk
    @Tumusiime-mq1nk 8 месяцев назад +3

    Aaaaa how can you multiply 1/x^4=625 and just make inter changes

    • @TinotendaMuzah
      @TinotendaMuzah 5 месяцев назад

      Very good question 😅 I am also get confused here

    • @ipinge_reinhold
      @ipinge_reinhold 5 месяцев назад

      Plz redo questions (b)

  • @MargretMudenda-f8f
    @MargretMudenda-f8f 5 месяцев назад

    How did you find x -3/2

  • @MaryamAdebukola-r4h
    @MaryamAdebukola-r4h 2 месяца назад

    Please I need clear explanation on question C

  • @essammorsy1908
    @essammorsy1908 7 месяцев назад +1

    شكرا

  • @Bishirii-fu9wf
    @Bishirii-fu9wf 2 месяца назад

    Thonk you ❤❤❤❤❤❤❤❤❤

  • @Lawrencia-c6o
    @Lawrencia-c6o Год назад +1

    When a question is giving maybe 5×+1=625, how will you solve it

    • @Baby8vivian
      @Baby8vivian 7 месяцев назад +1

      5x + 1 = 625
      Subtract 1 from both sides of the equation
      5x + 1 (- 1) = 625 - 1
      5x = 624
      Divide 5 by both sides of the equation to make x subject of the formula
      5X ÷ 5 = 624 ÷ 5
      X = 124.8

  • @AleshaSeverinus
    @AleshaSeverinus 8 месяцев назад +1

    I don't understand letter b sir
    I need help

  • @Sifaya-z7u
    @Sifaya-z7u Месяц назад

    Where is three coming from

  • @MondeSampaya
    @MondeSampaya 2 месяца назад

    Why didn't we make the last question have the same base I'm confused

  • @arowosafejolade7409
    @arowosafejolade7409 14 дней назад

    Pls what year is this

  • @VincentPhiri-gc4dx
    @VincentPhiri-gc4dx 7 месяцев назад +2

    Am new here guys

  • @HenrySimonJoseph
    @HenrySimonJoseph 5 месяцев назад +1

    Good teacher

  • @HumphreyMulenga-rb9bd
    @HumphreyMulenga-rb9bd 9 месяцев назад +1

    I want you to solve for me (1/3 )-1

  • @ananiasyohana5344
    @ananiasyohana5344 Год назад +1

    Solve this 2 rest to power x minus y equal to 16

  • @destinylonglife5821
    @destinylonglife5821 3 месяца назад

    Too fast bro, clear explanation.

  • @GregoryMaina-n7f
    @GregoryMaina-n7f Месяц назад

    All was well until the last part

  • @Obenewaa7
    @Obenewaa7 7 месяцев назад +16

    Am I the only one who is confused here

    • @atighttbett6478
      @atighttbett6478 6 месяцев назад

      Drop them digits

    • @Thehouseguy123
      @Thehouseguy123 6 месяцев назад

      No, and I’m wondering why the numbers are big and the rest are small?

    • @ozgamerab8780
      @ozgamerab8780 6 месяцев назад +2

      1:17 So what he did here is made the base of each expression the same. This means that we can just get rid of these bases, due to their equivalence, and bring the exponents down as bases.

    • @coolzeeee
      @coolzeeee 6 месяцев назад +1

      Which part

    • @MaryKangwakabwe
      @MaryKangwakabwe 6 месяцев назад +1

      Not at all

  • @NtumiMonoge-mv1tn
    @NtumiMonoge-mv1tn 9 месяцев назад

    ❤❤❤❤

  • @Lawrenceobinnaaka
    @Lawrenceobinnaaka Месяц назад +1

    I do not understand ( c)

  • @MaryMakubale-j8w
    @MaryMakubale-j8w 3 месяца назад

    Not clear on the last one

  • @phanibhusansaharoy5843
    @phanibhusansaharoy5843 3 месяца назад

    Yes

  • @feelz_Zm
    @feelz_Zm Месяц назад

    🤐🤐🤐

  • @jenifferasimwe5709
    @jenifferasimwe5709 8 месяцев назад +1

    How did u cross multiply

  • @EsterNakashole
    @EsterNakashole 2 месяца назад

    Question c is confusing

  • @MugishaDerek
    @MugishaDerek 6 месяцев назад +1

    I didn't understand

    • @coolzeeee
      @coolzeeee 6 месяцев назад

      Which part...

  • @BensonNgulube-iy5wi
    @BensonNgulube-iy5wi Год назад +1

    Give us grade

  • @BunmiKolade-g5q
    @BunmiKolade-g5q 6 дней назад

    I don't understand oooooo

  • @manuelnakwakiru
    @manuelnakwakiru 25 дней назад

    am not with u ...sir I think you have not cross multiplied well

  • @OkorieNgozi-oy3gs
    @OkorieNgozi-oy3gs Год назад +5

    Bad teaching

  • @MonicaBelix
    @MonicaBelix 14 дней назад +1

    You lost me at (b)👎👎

  • @AlimamyTuray-u5w
    @AlimamyTuray-u5w 3 месяца назад +1

    You need to learn before you can teach better

  • @prankster-100
    @prankster-100 Месяц назад

    This guy don't know how to explain 😢

  • @SkillfulCounter1-mm7lk
    @SkillfulCounter1-mm7lk 16 дней назад

    @Obenewaa7 just say that you don't understand what am confused

  • @BensonNgulube-iy5wi
    @BensonNgulube-iy5wi Год назад +1

    Give us grade

  • @AlimamyTuray-u5w
    @AlimamyTuray-u5w 3 месяца назад

    You need to learn before you can teach better