SOLUTION: the area of a rectangle is 135 in^2 the length is 6 inches shorter than the width find the length

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Question 324947: the area of a rectangle is 135 in^2 the length is 6 inches shorter than the width find the length
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
L=W-6
A=LW
135=(W-6)W
135=W^2-6W
W^2-6W-135=0
(W+9)(W-15)=0
W-15=0
W=15 ANS. FOR THE WIDTH.
L=15-6=9 ANS. FOR THE LENGTH.
PROOF:
135=15*9
135=135