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November 27, 2014

November 27, 2014

Posted by **j.** on Thursday, January 27, 2011 at 9:08am.

- trig -
**drwls**, Thursday, January 27, 2011 at 10:24amCombine similar terms. For example, the two "x^2" terms combine to give

3x^2 -5x^2 = -2x^2

You can also combine the two 'x' terms, to get one 'x' term and the two constants also.

Don't forget that the "-" in front of

(5x^2+7x-7) changes the sign of every term inside the parentheses, before you combine similar terms.

You should end up with

-2x^2 -12x +11

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