# If each side of a square is increased by 12cm the area is increased by 240cm^2 what is the length of the side of the original square?

1
by eiman

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by eiman

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s²+240= (s+12) (s+12)

s²+240=s²+24s+144

s²=s²+24s+144-240

s²=s²+24s-96

24s-96=0

24s=96

s=4

the original lenght of the square 4.