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How can i turn a factor like this x(x+1) + x(1-x) into the same things in order to factor? If that wasnt clear, how can I turn a polynomial with - into a polynomial with + so I can do the last step and factor

 Jun 16, 2020
 #1
avatar+21586 
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Generally speaking, you can't turn an  x - 1  into an  x + 1.

 

You can turn a  1 - x  into an  x - 1  by factoring out a negative one:  1 - x  =  -1(x - 1)

 Jun 16, 2020

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