This is a sample of a ? on Mon. test. I can't figure out. 2x(x+2)=x+2 x=2/1/3

How do you figure this problem out.  2x(x+2) = x+2  x=2 and/or 1/3
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1 Answer

2x(x+2)=x+2 can be rewritten: 2x(x+2)-(x+2)=0. This factorises: (2x-1)(x+2)=0, so 2x-1=0 or x+2=0. So 2x=1 and x=1/2 or x=-2.

by Top Rated User (1.1m points)

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