Question 324947
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