What must be added to 4x2+12x +5 to make it a perfect square. – InterviewSolution

1.

What must be added to 4x2+12x +5 to make it a perfect square.

Answer»

4x^2+12x+5when we add 4 in the equation it will become4x^2+12x+5+4=(2x)^2+2(2x)(3)+(3)^2=(2x+3)^2

I didn't uderstood

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