Bellator124 Bellator124

26-07-2016
Mathematics

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The area of a rectangle is (see attachment) and the width is x+1 Find the length.

The area of a rectangle is see attachment and the width is x1 Find the length class=

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dalendrk dalendrk

26-07-2016

[tex]x^2+2x+1=x^2+2x\cdot1+1^2=(x+1)^2=(x+1)(x+1)\\used:(a+b)^2=a^2+2ab+b^2\\\\A_{\fbox{ }}=wl\\\\w=x+1;\ l=?\\\\l(x+1)=x^2+2x+1\\l(x+1)=(x+1)(x+1)\\\\therefore\ l=x+1[/tex]

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