Question

find value of k, if (k+1)square -2(k+4)x+2k=0 have equal roots.

Answer 1

k+1=0
k=-1
2(k+4)x+2k=0
2(-1+4)x+2(-1)=0
3x+2=0-2
3x+2=-2
3x=2-2
3x=0
x=0/3=0

Answer 2

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