Question

9x^{2} - x^{3} - 9 + x
What is ^^^ factored?

Answer 1

Explanation:

9x² - x³ - 9 + x

factored = x²(9 - x) - (9 - x)

= (9 - x)(x² - 1)

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