SOLUTION: (4S - 8) square = 81
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Question 32544
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(4S - 8) square = 81
Answer by
mukhopadhyay(490)
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(4S - 8)^2 = 81
=> (4s-8) = 9 or (4s-8) = -9
=> s=17/4 or s=-1/4
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