Question

(x−4) (x-4) is subtracted from 10x

Answer 1

18x - x^2 - 16

Explanation:

10x - ((x - 4) (x - 4))

10x - (x - 4)^2

10x - (x^2 - 2x · 4 + 4^2)

10x - x^2 + 2x · 4 - 4^2

10x - x^2 + 8x - 16

(10x + 8x) - x^2 - 16

18x - x^2 - 16