Evaluating Algebraic Expressions with Exponents | Math with Mr. J
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- Опубликовано: 19 окт 2022
- Welcome to Evaluating Algebraic Expressions with Exponents with Mr. J! Need help with evaluating algebraic expressions? You're in the right place!
Whether you're just starting out, or need a quick refresher, this is the video for you if you're looking for help with how to evaluate algebraic expressions. Mr. J will go through examples of evaluating algebraic expressions with exponents and explain the steps of how to evaluate an algebraic expression using substitution.
MORE VIDEOS ON ALGEBRAIC EXPRESSIONS:
✅ Intro to Evaluating Algebraic Expressions = • Intro to Evaluating Al...
✅ How to Evaluate Algebraic Expressions with One Variable = • Evaluating Expressions...
✅ How to Evaluate Algebraic Expressions with Two Variables = • Evaluating Expressions...
✅ Evaluating Algebraic Expressions with Exponents = • Evaluating Algebraic E...
✅ Evaluating Algebraic Expressions with Variables Next to Each Other = • Evaluating Algebraic E...
✅ Evaluating Algebraic Expressions in Fractional Form = • Evaluating Algebraic E...
✅ What Does it Mean When a Number is Next to a Variable? = • What Does it Mean When...
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Hopefully this video is what you're looking for when it comes to evaluating algebraic expressions with exponents.
Have a great rest of your day and thanks again for watching! ✌️✌️✌️
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✅ More algebraic expression videos in the description!
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yo hii
Yes, Thank you Mr J!!! If possible our class is now working on Slope. Don’t care how many times my teacher explains it I don’t understand it. Can you please explain how to do it???? Linear equations thanks!!!!
Sir can you teach some grade 7 and 8 maths please 🙏
Thank u so much mr J, i had sick for 2 days and didnt attend school. But with your videos, it sure did explain everything on me. I appreciate your help alot. ☺️
I am studying for a test and you really helped me
Thank you so much math with Mr. j you have helped me understand a lot of math since 4th grade till now 6th grade. Thank you
Today I have an exam and you posted while I am sleeping so rn is like morning and I am watching this! Tyy
Im confused on #2 x³-5x+25, why did you subtract 27-15 1st? If we follow pemdas, shouldn't we add 15+24 first. I know this will give you a negative number, but you lost me there.
Thannk youu so much , this video helps me understand our lesson a lot!!!!!!!!!!!!!!
Tysmm! Your literally so much more help then my math teacher. 🙏🏼🙏🏼
Mr J sir what grade do you teach?
6th Grade
Anything that is math so any grades ig
@@alanszafarczyk4068can he be my teacher!🙏
El mejor /the best
Amazing all of your videos are helping out my daughter in math when we moved. Keep doing amazing things Mr.j!😌🤓😺
Thanks really needed this... I am studying for an exam
Thank you Mr.J
Thank you so much!
WHERE DID YOU GET THE 3 FROM
he got the 3 from the x its on the screen dummy
Thank you so much 💓 💗 💛 💖
Thanks your very smart mr j
Thanks Mr. J, I am very scared of telling my teacher I don’t understand and these video made me understand better
And just when my teacher started teaching us this this semester!
this helped alot
Better than my math teacher
Mr. J case this be on my GED test well just finishing celebrating my birthday🎂♊ June 6th , I celebrate the whole month of June. Now I'm ready to reverse back getting my GED let's focus your videos do help
Legend Still Uploads To This Day 👍👍
This helped me
Can i know why substraction came first but not addition?according to order of operations
Pemdas first do brackets then exponents then multiply then divide then add then subtract
Thank
But with BODMAS ..addition comes before subtraction so why did you subtract first?
My teacher: I’m going to explain how to do this in 30 minutes!
Mr. J: I’m going to explain how to do this in 4 minutes and 58 seconds!
Bro is more faster than my dad coming back with the milk.
Mr. J I thought that addition was the first one why did the subtraction came first?
Addition and subtract can come first anytime you can do it by doing it left to right. Make sure to know your order of operations ❤
Wow
I NEED HELP WITH POLYNOMINALS😢
Cool
In the expression
a
m
, the exponent tells us how many times we use the base
a
as a factor.
On the left side, 7 to the 3rd power is shown. Below is 7 times 7 times 7, with 3 factors written below. On the right side, parentheses negative 8 to the 5th power is shown. Below is negative 8 times negative 8 times negative 8 times negative 8 times negative 8, with 5 factors written below.
10
3
is read as “
10
to the third power” or “
10
cubed.” It means
10
⋅
10
⋅
10
, or
1
,
000
.
8
2
is read as “
8
to the second power” or “
8
squared.” It means
8
⋅
8
, or
64
.
5
4
is read as “
5
to the fourth power.” It means
5
⋅
5
⋅
5
⋅
5
, or
625
.
b
5
is read as “b to the fifth power.” It means
b
⋅
b
⋅
b
⋅
b
⋅
b
. Its value will depend on the value of b.
The exponent applies only to the number that it is next to. Therefore, in the expression
x
y
4
, only the
y
is affected by the
4
.
x
y
4
means
x
⋅
y
⋅
y
⋅
y
⋅
y
.
If the exponential expression is negative, such as
−
3
4
, it means
-
(
3
⋅
3
⋅
3
⋅
3
)
or
−
81
.
If
−
3
is to be the base, it must be written as
(
−
3
)
4
, which means
−
3
⋅
−
3
⋅
−
3
⋅
−
3
, or
81
.
Likewise,
(
−
x
)
4
=
(
−
x
)
⋅
(
−
x
)
⋅
(
−
x
)
⋅
(
−
x
)
=
x
4
, while
−
x
4
=
-
(
x
⋅
x
⋅
x
⋅
x
)
.
2x + 3 and also 3x +10 =46
First
Can u do this for me but u won't have time coz i have maths exam tomorrow 😢
S̲e̲c̲o̲n̲d̲☞
doesnt addition come first ? PEMDAS
Addition was always last as far as I know
PEDMAS the Addition is the second last
(X^2y)^3•x^3
Your Math too easy