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21 May, 06:45

The side of a square is 2x+3y. Find its area

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  1. 21 May, 10:18
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    4x^2 + 12xy + 9y^2

    Step-by-step explanation:

    The area of a square is the square of the length of a side. It is also the length of a side multiplied by itself.

    A = s^2

    A = (2x + 3y) ^2

    A = (2x + 3y) (2x + 3y)

    Use FOIL.

    A = 4x^2 + 6xy + 6xy + 9y^2

    A = 4x^2 + 12xy + 9y^2
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