Question

Evaluate the following expression using the values given:

@tootles please help
Find -a2 - 3b3 + c2 + 2b3 - c2 if a = 3, b = 2, and c = -3.

Answer 1

@Tootles143 please help

Answer 2

thankyou orange do u know this stuff

Answer 3

all you have to do is replace the letters with their corresponding numbers so
-3*2 - 3*2*3 + -3*2 (I'll leave the rest to you ) 2b3 - c2

Answer 4

Hope I helped

Answer 5

so is the answer -31

Answer 6

1 sec I'll check

Answer 7

thnk u

Answer 8

not quite

Answer 9

I have answer choices would u like to see them

Answer 10

keep careful track of the - signs remember that - a negative is the same as + a posotive

Answer 11

Evaluate the following expression using the values given:

Find -a2 - 3b3 + c2 + 2b3 - c2 if a = 3, b = 2, and c = -3.

-67
-17
-31
1

Answer 12

ok i'll check my answer one more time looks like i did something wrong haha

Answer 13

thankyou it looks more like this though

Answer 14

ooooooohhhhh

Answer 15

those are exponents not multiples

Answer 16

yeah its confusing

Answer 17

you should write it "-a^2 - 3b^3 + c^2 + 2b^3 - c^2"

Answer 18

so to work it out all you have to do is know how exponents work

Answer 19

yeah so would it be -31

Answer 20

i think

Answer 21

hbu

Answer 22

i'll check haha was checking the wrong problem

Answer 23

ok so i'll tell you that you're wrong but let's work out why

Answer 24

ok?

Answer 25

ok

Answer 26

-3^2=-6 right

Answer 27

so first we can say that we have
-a^2 - 3b^3 + 2b^3 because c^2 and - c^2 cancel out alright?

Answer 28

yes

Answer 29

so then we replace the letters with the numbers they stand for
- 3^2 - 3*2^3 + 2*2^3

Answer 30

now do you know how "^" work?

Answer 31

basically if it says ^2 it means that there are two of that number being multiplied together

Answer 32

yes thank u so it would be -67

Answer 33

so 2^2 = 2*2 = 4 3^2 = 3*3 = 9 and 2^3 = 2*2*2 = 8

Answer 34

fill it in like that and come back with your answer :)

Answer 35

remember you're working from - 3^2 - 3*2^3 + 2*2^3

Answer 36

u still there

Answer 37

yep

Answer 38

so all you have to do is this
-3*3 - 3*2*2*2 + 2*2*2*2

Answer 39

-17

Answer 40

Congratz

Answer 41

thnks can u help with another please

Answer 42

ok but i'm starting my own work so i might be a bit short with my responces

Answer 43

ok

Answer 44

message me please