Posted by Jazzy on Monday, February 13, 2012 at 6:54pm.
Combine like terms.
12.) 7r4 + 13r2 + 9r
13.) 3  4x  15x  6x  1
Thanks to whoever helps me :D

math  Reiny, Monday, February 13, 2012 at 7:10pm
in 12.) , if your mean 7x^4 etc, then all 3 terms would be different and nothing else can be done
13.)
34x  15x  6x  1
= 2  24x , just add up the x terms and the constants.

math  Jazzy, Monday, February 13, 2012 at 7:11pm
Thank you so much Reiny :D
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