Question

Solve x^2-8x-9=0 algebrically

Answer 1

x=9 x=-1

Explanation:

x^2-8x-9=0

Factor

What 2 numbers multiply to -9 and add to -8

(x-9) (x+1) =0

Using the zero product property

x-9 =0 x+1 =0

x=9 x=-1