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September 23, 2014

September 23, 2014

Posted by **Christy** on Saturday, July 17, 2010 at 5:41pm.

subtract

(2x^4 + 9x^3 -1) - (9x^2 -2x +4)=

- algebra 2 -
**Henry**, Saturday, July 17, 2010 at 7:47pm( 2X^4 + 9X^3 -1 ) - ( 9X^2 -2X + 4 ) To remove a parenthesis with a negative sign out front, change the

sign of each term within the pa-

renthesis:

2X^4 + 9X^3 -1 -9X^2 + 2X -4

Combine like-terms:

2X^4 + 9X^3 -9X^2 +2X -5.

There were only two like-terms (-1 and -4 ); i don't believe this

can be simplified further.

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