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OpenStudy (anonymous):
A rectangular garden has a width of 5 feet and a length of 10 feet. If an equal amount is added to both the width and the length, the area is increased to 84 square feet. What is this amount?
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OpenStudy (anonymous):
(5+x)(10+x)=84
OpenStudy (anonymous):
x^2+15x+50-84=0
OpenStudy (anonymous):
x^2+15x-34=0
OpenStudy (anonymous):
(x+17)(x-2)=0
OpenStudy (anonymous):
the amount is 2 we reject -17 cause it doesnt make sense
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OpenStudy (anonymous):
TADA!
OpenStudy (anonymous):
WOW, thanks!
OpenStudy (anonymous):
np
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