f(x) = 5x³ + 24x² - 75x + 14 Set each given factor equal to 0 and obtain 4 values of x: A) x = -1/2 B) x = 1/2 C) x = -2 D) x = 2 Now, use the hit and trial method to find the answer. We are looking for a value of x which will put f(x) = 0 5(-1/2)³ + 24(-1/2)² - 75(-1/2) + 14 =/= 0 5(1/2)³ + 24(1/2)² - 75(1/2) + 14 =/= 0 5(-2)³ + 24(-2)² - 75(-2) + 14 = /= 0 5(2)³ + 24(2)² - 75(2) + 14 = 0 Thus, the answer is D
