Equations involving Indices

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  • Опубликовано: 4 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

  • @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

  • @richardkapalu2711
    @richardkapalu2711 8 месяцев назад +4

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

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

    Thanks again so much for your help

  • @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.

  • @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).

  • @Misshafsah
    @Misshafsah 2 месяца назад

    Thanks so much for your help❤

  • @adgf1x
    @adgf1x 2 месяца назад

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

  • @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

  • @berthankhata1093
    @berthankhata1093 Год назад +2

    Sir please explain more on this one

  • @essammorsy1908
    @essammorsy1908 7 месяцев назад +1

    شكرا

  • @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

  • @aarontembo2813
    @aarontembo2813 Год назад +1

    Thanks for helping me

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

    explain the 3rd quiz well🙁🙁🙁🙁

  • @IsholaKaotharolabisi
    @IsholaKaotharolabisi 7 месяцев назад +2

    Please in question 2whereis the 2

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

    Thonk you ❤❤❤❤❤❤❤❤❤

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

    Sir continue

  • @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

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

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

  • @duvalmomo
    @duvalmomo Месяц назад

    Please clearify quadratic equations and functions in A level

  • @emmanuelochieng8908
    @emmanuelochieng8908 3 месяца назад

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

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

    How did you find x -3/2

  • @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 4 месяца назад

      Plz redo questions (b)

  • @Sifaya-z7u
    @Sifaya-z7u 29 дней назад

    Where is three coming from

  • @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

  • @MondeSampaya
    @MondeSampaya 2 месяца назад

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

  • @AleshaSeverinus
    @AleshaSeverinus 8 месяцев назад +1

    I don't understand letter b sir
    I need help

  • @StephanieChepkoech
    @StephanieChepkoech 29 дней назад

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

  • @ananiasyohana5344
    @ananiasyohana5344 Год назад +1

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

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

    Please I need clear explanation on question C

  • @VincentPhiri-gc4dx
    @VincentPhiri-gc4dx 6 месяцев назад +2

    Am new here guys

  • @HenrySimonJoseph
    @HenrySimonJoseph 5 месяцев назад +1

    Good teacher

  • @phanibhusansaharoy5843
    @phanibhusansaharoy5843 3 месяца назад

    Yes

  • @feelz_Zm
    @feelz_Zm 29 дней назад

    🤐🤐🤐

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

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

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

    ❤❤❤❤

  • @GregoryMaina-n7f
    @GregoryMaina-n7f Месяц назад

    All was well until the last part

  • @destinylonglife5821
    @destinylonglife5821 3 месяца назад

    Too fast bro, clear explanation.

  • @arowosafejolade7409
    @arowosafejolade7409 13 дней назад

    Pls what year is this

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

    Not clear on the last one

  • @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

  • @jenifferasimwe5709
    @jenifferasimwe5709 8 месяцев назад +1

    How did u cross multiply

  • @Lawrenceobinnaaka
    @Lawrenceobinnaaka Месяц назад +1

    I do not understand ( c)

  • @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 4 дня назад

    I don't understand oooooo

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

    Bad teaching

  • @MonicaBelix
    @MonicaBelix 12 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

  • @manuelnakwakiru
    @manuelnakwakiru 23 дня назад

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

  • @prankster-100
    @prankster-100 Месяц назад

    This guy don't know how to explain 😢

  • @SkillfulCounter1-mm7lk
    @SkillfulCounter1-mm7lk 15 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