Question

Give the polynomial function below find f(-4) f(x) =2x^2 - x+ 9

Answer 1

f(-4) = 45

Explanation:

Put x = -4 to f(x) = 2x² - x + 9:

f(-4) = 2(-4)² - (-4) + 9 = 2(16) + 4 + 9 = 32 + 4 + 9 = 45