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26-06-2018
Mathematics

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form a perfect square trinomial y=x^2+2x+

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26-06-2018

[tex](a+b)^2=a^2+2ab+b^2[/tex]

[tex]y=x^2+2x+...=x^2+2\cdot x\cdot1+1^2=x^2+2x+1=(x+1)^2[/tex]

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