The area of a rectangle is x^=7x+12 if it's breath is (x +3) then find it's length
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Step-by-step explanation:
area of rectangle =l×b
given b=x+3
l=?
l×b=x^2+7x+12
l=x^2+7x+12/x+3
l=(x+3)(x+4)/(x+3)
l=x+4
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