kaishasenat1986
18.08.2021 •
Mathematics
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Ответ:
The length is equal to x and the width is (x - 6), right?
The area of a rectangle is A = l * w so
l * w = A
x * (x - 6) = 7
x2 - 6x = 7
x2 - 6x - 7 = 0
(x-7)(x+1) =
x = 7 and x = -1
We cannot use x = -1 because we would end up with a negative length so we run with x = 7 as the length.
Step-by-step explanation: