Answers

2016-08-02T18:59:24+08:00
I take the square root of the first term and the last term of the trinomial square Ex. x2 + 2xy + y2 Taking the square root of the first term for the first term of the two identical binomial factors x2 = x Taking the square root of the last term for the last term of the two identical binomial factors y2 = y Then the two identical binomial factors which can be written as the square of one of them are the factors of the trinomial square. Thus: x2 + 2xy + y2 = (x + y) (x + y) or (x + y)2
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thank u thank you so much! this helped me a lot!