Question

Please Help!
(4a-3a^2)-(-7a-8)

Answer 1

\[(4a-3a^2)-(-7a-8)\]

Answer 2

can you simplify this bit first?

−(−7a−8)

Answer 3

multiply both terms in the parentheses by -1

Answer 4

7,8

Answer 5

dont forget the a

Answer 6

(7a+8)

Answer 7

good now you have

\[(4a-3a^2)-(-7a-8)\\
=(4a-3a^2)+(7a+8)\]
you can drop the parentheses
\[=4a-3a^2+7a+8\]

now jus combine the \(a\) terms

Answer 8

-3a^2+11a+8

Answer 9

\[=−3a^2+(4+7)a+8\\
=−3a^2+11a+8\] that's right!