Do I need to do distributive property on the "-"?

Mathematics
Tutor: None Selected Time limit: 1 Day

Nov 4th, 2015

Thank you for the opportunity to help you with your question!

 When you have a minus sign − in front of a  parenthesis, you change the sign of every term within the parenthesis. So change + to − and − to + .

a − (b −c + d) = a − b + c − d.

It is like you do distributive property with (-1) as a coefficient.

In  your example the result is:-(2x^2+x+1)= -2x^2-x-1



Please let me know if you need any clarification. I'm always happy to answer your questions.
Nov 4th, 2015

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