How do you simplify #2q ^ { 2} + q ^ { 2} - 10q ^ { 2} + - q ^ { 2}#?

1 Answer
Robert W.
Jul 15, 2017

#-8q^2#

Explanation:

As these are all like terms (all #q^2#) you can add them all together. The tricky bit is the +- at the end which becomes a minus. The following line may help too:

#2q^2cancel(+q^2)-10q^2cancel(-q^2)#

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