题目内容
计算
(1)(2
)0-(
)-2+(-1)4
(2)4x3÷(-2x)2-(2x2-x)÷(
x)
(1)(2
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| 2 |
(2)4x3÷(-2x)2-(2x2-x)÷(
| 1 |
| 2 |
(1)原式=1-4+1=-2;
(2)原式=4x3÷4x2-(4x-2)
=x-(4x-2)
=-3x+2.
(2)原式=4x3÷4x2-(4x-2)
=x-(4x-2)
=-3x+2.
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