Asked by j
                x2+4x+4 a perfect square?
            
            
        Answers
                    Answered by
            oobleck
            
    the first and last terms are perfect squares: x^2 and 2^2
so, is the middle term 2*1*2? Yes
(x+2)^2 = x^2 + 4x + 4
    
so, is the middle term 2*1*2? Yes
(x+2)^2 = x^2 + 4x + 4
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