Question

If one zero of the quadratic polynomial x2-5x+k is -4, then the value of k is

Answer 1

Answer:

$<font color = violet>$

Given , the value of x , i.e., ( -4 )

solution :

-4^2 - 5 × ( -4 ) + k

16 + 20 + k

36 + k

k = ( -36 )

hence , the value of k is ( -36 ) ✓

Answer 2

Step-by-step explanation:

p(x) = x² - 5x + k

p(-4) = (-4)² - 5 × -4 + k = 0

= 16 + 20 + k = 0

= 32+k=0

= k = -32