问题
解答题
化简: (1)2-3(-2a-1)+2(3a+2); (2)6(a-
|
答案
(1)2-3(-2a-1)+2(3a+2),
=2+6a+3+6a+4,
=12a+9;
(2)6(a-
)-4(2a-b+c 3
),b-c 2
=6a-2b-2c-8a+2b-2c,
=-2a-4c.
化简: (1)2-3(-2a-1)+2(3a+2); (2)6(a-
|
(1)2-3(-2a-1)+2(3a+2),
=2+6a+3+6a+4,
=12a+9;
(2)6(a-
)-4(2a-b+c 3
),b-c 2
=6a-2b-2c-8a+2b-2c,
=-2a-4c.