Question

if one zero of the quadratic polynomial x^2-7x+5k is -2 find k

Answer 1

hii frnd ....ur and is
x2-7x+5k=0
as -2 is the zero of the polynomial
(-2)2-7(-2)+5k=0
-4+14+5k=0
5k=-10
k=-2
hope it helps

Answer 2

Answer:

x2-7x+5k=0

as -2 is the zero of the polynomial

(-2)2-7(-2)+5k=0

-4+14+5k=0

5k=-10

k=-2