Answers

2015-07-12T18:43:51+08:00
(2a-2)+3(8a^2-15a-12a+15)
2a-2+24a^2-45a-36a+45
24a^2-79a+43
0
****(2a-2)+3(8a^2-10a-12a+15)
2a-2+24a^2-45a-30a+45
24a^2-73a+45
**************(2a-2)+3(8a^2-10a-12a+15)
2a-2+24a^2-30a-36a+45
24a^2-64a+45

omg im not that good ok?