A house has two rooms of equal area. One room is a rectangle 4ft narrower and 5ft longer then the square one. Find the area of each room.

Please explain to me what to do because i am confused. Thanks

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  1. Square room is x by x with area x^2.

    The rectangular room is (x - -4) by (x + 5.

    Therefore, x^2 = (x-4)(x+5)

    I bet you can take it from here.

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