Question

if 4 is one of the zeroes of a polynomial p(x)=x square + Kx - 8 then find the value of k​

Answer 1

Answer:

4^2 + k.4 - 8

16 + 4k - 8

8 + 4k

4k = - 8

k = -2

hope it helps you

Answer 2

Answer:

If 4 is one of the roots of the equation then if we put x =4 the ans. will be zero.

So, put x =4

(4)²+k(4)-8 = 0

16 +4k -8 = 0

4k = -8

k = -2