Find remainder when f(x) is divided by (x-k)

Question

f(x)= 2x³-6x²-4x+15

k= -3

Answer 1

f(x) = 2x³ - 6x² - 4x + 15

Remainder when f(x) is divided by x - k is f(k).

So, remainder when f(x) is divided by x - (-3) is f(-3) = -81.