Question

Factor x2 − 8x + 9.

Answer options:

A. (x-9)(x-1)
B. (x+9)(x+1)
C. Prime
D. (x+9)(x-1)

Answer 1

x^2 − 8x + 9

What two numbers when multiplied yield 9 but when added yield -8?

There are no such numbers.

Use the quadratic formula.