the length of the rectangle is 3 less than twice the width . if the area is 9 square ft, the length and width of the rectangle
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Answer:
W = 3ft
L = 3ft
Step-by-step explanation:
L = 2× -3
W = x
(2x -3) (×) = 9
2x^2 -3x = 8
Transpose
2x^2 -3x -9
Apply quadratic trinomials
ac = factors of -18 where in the sum of it is -3
-6 + 3
Rewrite
(2x^2 - 6x) + (3x-9)
Factor
2x(x - 3) + 3( x - 3)
Put ( x - 3 )
x - 3 = 0
Transpose
x = 3
Apply :
L = 2(3) - 3 = 3
w = 3
Hope it is helpful for you
Thank you
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