Question

X-2 is a factor of f(x) = x3 – 2x2 + ax +

+18. State the remainder when f(x) divided
by x-9.

Answer 1

remainder: 504

Explanation:

x³ – 2x² + ax +18 = x²(x-2) - 9*(x-2)

a = -9

(x³ – 2x² - 9x +18) / (x-9) = (x² +7x + 54)(x-9) + 504 ... long division

Answer 2

answer is in the picture above