Which of the following represents the zeros of f(x) = x3 − 4x2 − 5x + 20?

−4, −square root of 5 , −square root of 5

4, square root of 5 , −square root of 5

4, −square root of 5 , −square root of 5

−4, square root of 5 , square root of 5

The zeroes of f(x) are 4 , √5 , -√5

Step-by-step explanation:

(x - 4) is a factor of f(x) because : (x = 4)

(4)³ - 4(4)² - 5(4) + 20 = 0

(x - √5) is a factor of f(x) because : (x = √5)

(√5)³ - 4(√5)² -5(√5) + 20 = 0

(x + √5) is a factor of f(x) because : (x = -√5)

(-√5)³ - 4(-√5)² -5(-√5) + 20 = 0

∴ The zeroes of f(x) are 4 , √5 , -√5

8

step-by-step explanation:

just put √(2) * √(32) into a calculator. that will make the answer be 8.

ans789

step-by-step explanation: