Question

Find the sum of the three expressions and choose the correct answer.

-2u^3v + 5uv - 1
7u^3v - 2u^2v^2
5u^2v^2 - uv + 6

Answer 1

combine like terms

Answer 2

to the first one or all of them

Answer 3

(-2u^3v + 7u^3v) + (-2u^2v^2 + 5u^2v^2) + (5uv - uv) + (-1 + 6)

Answer 4

group the like terms so it wont be confusing

Answer 5

so what is -2u^3v + 7u^3 v?

Answer 6

right! what is -2u^2v^2 + 5u^2v^2

Answer 7

3u^2v^2

Answer 8

correct! what is 5uv - uv

Answer 9

4uv

Answer 10

and -1 + 6 is...?

Answer 11

5

Answer 12

so you get
5u^3v+3u^2v^2+4uv+5

Answer 13

YEP!!!

Answer 14

wait nevermind thats it

Answer 15

thanx