Asked by Aakash
Find the value of k for which x^2+4x+k it is perfect square.
Answers
Answered by
Damon
if x^2 + d x
complete square
x^2 + d x + (d/2)^2
here
(4/2)^2 = 4
x^2 + 4 x + 4 = (x+2)^2
complete square
x^2 + d x + (d/2)^2
here
(4/2)^2 = 4
x^2 + 4 x + 4 = (x+2)^2
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