计算:(8x5-6x3-4x2)÷(-2x)=( )A.-4x4-3x2+2xB.-4x4+3x2+2xC.4x4+3x2-2xD.4x4-3x2-2x
题型:单选题难度:简单来源:不详
计算:(8x5-6x3-4x2)÷(-2x)=( )A.-4x4-3x2+2x | B.-4x4+3x2+2x | C.4x4+3x2-2x | D.4x4-3x2-2x |
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答案
(8x5-6x3-4x2)÷(-2x), =8x5÷(-2x)-6x3÷(-2x)-4x2÷(-2x), =-4x4+3x2+2x. 故选B. |
举一反三
计算:(a2b-ab2)÷(ab)=______. |
(x4y+6x3y2-x2y3)÷(3x2y)=______. |
计算(2ab2-8a2b)÷(4a-b)的结果为( ) |
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