Question

find the value of k​

Answer 1

4x²- (8k²-40k)x - 9

here,

let the zeros be a and -a,

so,

a + (-a) = -b/a

0 = -(-8k²+40k)/4

0 = 8k²- 40k

0 = 8k(k-5)

0 = k-5

k = 5

hope it helped.

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Answer 2

Answer:

The answer is attached above

hope it helps!!

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