SOLUTION: the area of a rectangle is 40 square inches. The length is 6 inches more than the width. Find the dimensions of the rectangle

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Question 297299: the area of a rectangle is 40 square inches. The length is 6 inches more than the width. Find the dimensions of the rectangle
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
LW=A
L=W+6
A=40
40=%28W%2B6%29W
40=W%5E2%2B6W
0=W%5E2%2B6W-40 4*10=40 ||| 10-4=6
%28w-4%29%28w%2B10%29
W=4,cross%28-10%29 cant be negative
L=W%2B6
L=4%2B6
L=10