Question

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Answer 1

L=7

W=10

Explanation:

W=2L-4

WL=70

(2L-4)L=70

2L^2-4L-70=0

2(L^2-2L-35)=0

2(L-7)(L+5)=0

L-7=0

so:

L=7 IS THE LENGTH OF THE RECTANGLE.

W=2*7-4

W=14-4

W=10 IS THE WIDTH OF THE RECTANGLE.

PROOF:

7*10=70

70=70