Question

if one zero of a quadratic polynomial 4 x square - 8k x minus 9 is negative of other find the value of k​

Answer 1

Answer:

0

Step-by-step explanation:

Given If one zero of a quadratic polynomial 4 x square - 8k x minus 9 is negative of other find the value of k

We have the equation as 4x^2 – 8kx – 9 . Now comparing the given equation with ax^2 + bx + c we get a = 4, b = -8k, c = 9

According to question one root is negative of the other,let the roots be p and -p.

Now sum of the roots will be a + (-a) = - b/a

                                                  0 = -(-8k/4)

                                                    0 = 2k

Now k = 0