Asked by Ben
length and width of a rectangle
A=198 in
width =x
length =x+7
A=198 in
width =x
length =x+7
Answers
Answered by
Reiny
What are we doing?
Are we finding the value of x?
if so, then ....
x(x+7) = 198
x^2 + 7x - 198 = 0
(x-11)(x+18) = 0
x = 11 or x = -18, but clearly x > 0
so x = 11
Are we finding the value of x?
if so, then ....
x(x+7) = 198
x^2 + 7x - 198 = 0
(x-11)(x+18) = 0
x = 11 or x = -18, but clearly x > 0
so x = 11
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