If one zero of p(x)=4xsqure -(8ksquare - 40k)x-9 is negative of the other find value of k
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Let α -α are the roots of 4x²-(8k²-40k)x-9=0
Hence α+(-α)=(8k²-40k)/4
Or, (8k²-40k)/4 =0
Or, 8k²-40k=0
Or, 8k(k-5)=0
therfore either 8k=0
Or, k=0
/OR k-5=0
Or, k=5
hence k=0, 5
Hence α+(-α)=(8k²-40k)/4
Or, (8k²-40k)/4 =0
Or, 8k²-40k=0
Or, 8k(k-5)=0
therfore either 8k=0
Or, k=0
/OR k-5=0
Or, k=5
hence k=0, 5
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