abergen99 abergen99

24-03-2017
Mathematics

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If the area of a rectangle with length (4x) is 4x^2+12x. Find the width.

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cthonic2 cthonic2

24-03-2017

the width is x + 3

hope this helps (;

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apologiabiology apologiabiology

24-03-2017

area=lenght times widht
area/length=width
(4x²+12x)/(4x)=width
we can factor out the 4x
4x²+12x=4x(x+3)

so the width is x+3

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