Question 1150605
A 8 yard by 10 yard swimming pool is surrounded by a deck of uniform width.the area of the deck is 72yd squared . Find the width of the deck
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d = deck width
Area of pool & deck = (2d+8)*(2d+10)
Area of deck = (2d+8)*(2d+10) - 8*10 = 72
{{{4d^2 + 36d - 72 = 0}}}