Question

Simplify 7a+8a^2+7a^0-4a^2-9a

Answer 1

4a^2-2a+7

Explanation:

combine like terms

7a+-9a= -2a

8a^2 - 4a^2 =4a^2

and anything to the power of 0 is a 1

so 7x1 is 7

so the answer is 4a^2 -2a+7