题目内容
(2011台湾全区,3)化简之后,可得下列哪一个结果?
A.2x-27 | B.8x-15 | C.12x-15 | D.18x-27 |
D
5(2x-3)-4(3-2x),
=5(2x-3)+4(2x-3),
=9(2x-3),
=18x-27.
故选D.
=5(2x-3)+4(2x-3),
=9(2x-3),
=18x-27.
故选D.
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题目内容
A.2x-27 | B.8x-15 | C.12x-15 | D.18x-27 |