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Original field is 7mx7m. Cause when you add 3 and 2 respectively on each side, the area will be 10mx9m, therefore the area of the new field is 90m2
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Can u give me a solution? maybe it helps
Since it is a square field at first. Both sides are equal. Let that be x. And you will add length of 3 and 2... So the equation is (x+3)(x+2)mm2=90mm2 solve for x=7
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