Question

Plz help! (click on the pic)

Answer 1

26x-1

Explanation:

`(10x^(2) -1)+(8x^(2) +8x-8)`

Solve for exponents

`10^(2) =100\\8^(2) = 64`

(100x -1)+(64x+8x-8)

100x-1+74x-8

100x-74x= 26x

-8+7=-1

26x-1

Hope this helps

Answer 2

here it is step by step, so your answer will be
-18x^2 + 8x-9