(______)÷0.3x3y2=27x4y3+7x3y2-9x2y.
题型:填空题难度:一般来源:不详
(______)÷0.3x3y2=27x4y3+7x3y2-9x2y. |
答案
(27x4y3+7x3y2-9x2y)•0.3x3y2=8.1x7y5+7x6y4-9x5y3. 故答案为8.1x7y5+7x6y4-9x5y3. |
举一反三
(3an+1+6an+2-9an)÷3an-1(n为正整数) |
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在等式( )3÷[(-2xyz)2-2x4y3z]=y中括号内应填入( )A.8x6y5z3 | B.8x2y2z | C.2x2y2z | D.±2x2y2z |
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