how to simplify the expression qr+2q^2-3qr-r^2-6q^2

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25-04-2017
Mathematics

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how to simplify the expression qr+2q^2-3qr-r^2-6q^2

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URGENT!! please please help!!

chul chul · Answer 1 · 2017-04-25T05:32:14+02:00

chul chul

25-04-2017

Let's make sure we organize everything.

qr
2q^2
-3qr
-r^2
-6q^2

Now combine like terms.
qr - 3qr = -2qr
2q^2 - 6q^2 = -4q^2
-r^2 is by itself.

So, your answer:

-4q^2-2qr-r^2

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