Wht is to be added with 4x^+12x, so that the sum is a perfect square?
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Answer:
576x
Step-by-step explanation:
4x^2 + 12x
=(2x)^2 + (144x)^2
=(2x)^2 + 2.2x.144x - (144x)^2
=4x^2 + 576x + 12x
576x is to be added to make it a perfect square.
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