SOLUTION: The length of a wall is 12m more than it's width. If the area of the wall is 50m² what could be it's length?

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Question 1167531: The length of a wall is 12m more than it's width. If the area of the wall is 50m² what could be it's length?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
w(w+12)=50
or
L(L-12)=50 for length multiplied by width
L^2-12L-50=0

L=(12+- sqrt(144+4*50))/2
L=(12+- sqrt(344))/2
L=(12+- 2sqrt(86))/2
L=6+- sqrt(86)
L=6+9.27
highlight%28highlight%28L=15.27%29%29