There is a square. If the side length is reduced by 5 cm, the area will be reduced by 125 square cm There is a square. If the side length is reduced by 5 cm, the area will be reduced by 125 square cm. How about the square area?
Suppose the length of the side is x cm now, it was x + 5 cm
So (x + 5) ² - X & #178; = 125
x²+10x+25-x²=125
x=10
x²=100
So now the area is 100 square centimeters
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