algebra

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Is (x+y)2 equal to (x2+y2)? Explain why or why not using an example to support your answer.

  • algebra -

    well, is (2+3)^2 = 2^2+3^2 ?

    Hint: (x+y)^2 = (x+y)(x+y)
    expand that and compare to x^2+y^2

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