- 计算1x2-y2•(x-y)的结果是______.
- 计算:-(mn)5•(-n2m)4÷(-mn4)=______.
- 计算:(2x3y)2•(3y4x)3÷(14xy)=______.
- 计算a-1a2-4a+4÷a2-1a2-4的结果为______.
- 计算:b2a2÷b2a2•a2b2=______.
- 计算a÷b•1b÷c•1c÷b•1d=______.
- (-4xy2z3x3yz2)3=______.
- 计算(x2y)2•(y2x)3÷(-yx)4得( )A.x5B.x5yC.y5D.xy5
- 计算12a2b4•的值等于( ) A.-9a B.9a C.-36a D.36a
- 化简3x2y22a2b2(-b x)2÷3y2x4ab .
- 计算:x+2x2-6x+9÷13-x•x-3x+2.
- 计算:3xy2÷(-6y2x)3•(12yx)2.
- 计算:(1)8x29y2•3y-4x=______;(2)a2+5a+62a+6•a2+2a-8a2-4=______.
- 化简x2-1x2+4x+4÷(x-1)•x+2x+1
- 计算a-ba×(bb-a)2÷b2a2.