sum of the areas of two squares is 468 metres square if the difference of their perimeter is 24m find the sides of the squares by the quadratic equation of one variable
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From equation (1) and (2) , we get
∵ x² + ( x - 6 )² = 468 . ⇒ x² + x² - 12x + 36 = 468 . ⇒ 2x² - 12x + 36 - 468 = 0 .
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