Question

if one zero of the quadratic polynomial x square - 8 kx minus 9 is negative of the other then find the value of k

Answer 1

here is your answer by Sujeet Kumar,
Let to be zeroes a and b of this quardratic equation,
then,
given a=-b


A/q
we know that,
a+b=-b/a
0=-(-8)k/1
0=8

then,
value of k=0

that's all