Question

Find the value of k if one of the zeroes of
the polynomial 4x2 - 5x + k is -2.​

Answer 1

Answer:

Given that the zero of the polynomial is -2.

i. e., x = -2

4x² - 5x + k = 0

4 × (-2)² - 5 × (-2) + k = 0

4 × 4 + 10 + k = 0

16 + 10 + k = 0

26 + k = 0

k = -26