answer fast 8 question
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from equation
l+b=14
lb=40
b=40/l
so l square-14l+40
l^2 -4l-10 l + 40=0
l(l-4)-10(l-4)= (l-4)(l-10)
so l is either 4 or 10 hope it helps
l+b=14
lb=40
b=40/l
so l square-14l+40
l^2 -4l-10 l + 40=0
l(l-4)-10(l-4)= (l-4)(l-10)
so l is either 4 or 10 hope it helps
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