The width of a rectangler figure is 5 units smaller than its length. if its area is 14 units square. find its dimensions
1 answer:
W = L - 5
A = W.L
14 = (L - 5).L
14 = L² - 5L
L² - 5L -14 =0
(L - 7)(L + 2) = 0 {factorized}
L = 7 / L = -2
In this case L would be equal to 7 because a length of anything can't be a negative number
Therefore, W = 2
Answer : Length = 7 Width = 2
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