Question

(-2h+9)(9h-2) in standard form

Answer 1

Answer: -18h^2 + 85h - 18

Explanation:

(-2h+9)(9h-2)

Open brackets

(-2h x 9h) + (-2h x -2) + (9 x 9h) + (9 x -2)

-18h^2 + 4h + 81h - 18

Add like terms 4h + 81h

-18h^2 + 85h - 18