整式的混合运算专项练习99题(有答案过程)ok
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整式的混合运算专项练习99题(有答案)
(1)(﹣2x2y3)•(xy)3
(2)5x2(x+1)(x﹣1)
(3)x(y﹣x)+(x+y)(x﹣y);
(4)(a+2b)2+4ab3÷(﹣ab).
(5)3(a2)3•(a3)2﹣(﹣a)2(a5)2(6)(5mn﹣2m+3n)+(﹣7m﹣7mn)(7)(x+2)2﹣(x+1)(x﹣1)
(8)(x+2)2﹣(2x)2;
(9)(2a+3b)2﹣4a(a+3b+1).
(10)(﹣2xy2)2•3x2y÷(﹣x3y4)(11)(x+1)2+2(1﹣x)(12)(﹣a3)2•(﹣a2)3;
(13)[(﹣a)(﹣b)2•a2b3c]2;
(14);(15)(x3)2÷x2÷x+x3÷(﹣x)2•(﹣x2).(16)(﹣3x2)3•(﹣4y3)2÷(6x2y)3;(17)(﹣x﹣y)2﹣(2y﹣x)(x+2y)
(18)
(19)(a+b)(﹣b+a)+(a+b)2﹣2a(a+b)(20);(21)x(x+1)﹣(2x+1)(2x﹣3);
(22)(2a+3b)2﹣(2a﹣3b)2.
(23)2a2﹣a8÷a6;
(24)(2﹣x)(2+x)+(x+4)(x﹣1)
(25)(﹣2ab3)2+ab4•(﹣3ab2);
(26)(2a+3)(2a﹣3)+(a﹣3)2.
(27)12ab2(abc)4÷(﹣3a2b3c)÷[2(abc)3].(28)(﹣2x2)3÷(﹣x)2
(29)(﹣2m﹣1)(3m﹣2)
(30)2x•(﹣x2+3x)﹣3x2•(x+1).
(31)3a•(﹣ab2)﹣(﹣3ab)2.
(32)﹣3x•(2x2﹣x+4)
(33)2x3•(﹣2xy)(﹣xy)3.
(34)3(x2﹣2x+3)﹣3x(x+1)=0.(35)(3x+2)(3x+1)﹣(3x+1)2.(36)2a(a+b)﹣(a+b)2.
(37)x(2x﹣7)+(3﹣2x)2.
(38)(﹣3x2y)2÷(﹣3x3y2)
(39)(a+2)2﹣(a+1)(a﹣1)
(40)(a2)4÷a2
(41)
.
(42)a(ab2﹣4b)+4a3b÷a2;
(43)(x﹣8y)(x﹣y).
(44)(3x2y)3•(﹣5y);
(45)[(x+y)2﹣y(2x+y)﹣4x]÷2x.(46)(2x+a)2﹣(2x﹣a)2
(47)[(2x2)3﹣6x3(x3+2x2)]÷(﹣2x2)(48)(x﹣2)(x+2)﹣(x+1)(x﹣3)
(49)(2a)3•b4÷12a3b2
(50)(3x﹣1)(2x+3)﹣6x2.
(51)(﹣6x2)2+(﹣3x2)•x﹣27x5÷(﹣9x2)(52)(﹣2y2)3+y•y5
(53)(x+2)2﹣(x+1)(x﹣1)
(54)(a+b)(a﹣b)+(a+b)2﹣a(2a+b)(55)(﹣a)2•(a2)2÷a3
(56)(15x2y﹣10xy2)÷5xy.
(57)[(2x2)3﹣6x3(x3+2x2+x)]÷(﹣x)4.(58)(x+1)2+2(1﹣x)﹣x2(59)(12a3﹣6a2+3a)÷3a
(60)5x2(x+1)(x﹣1)
(61)(b﹣2a)2﹣4a(a﹣b)
(62)(﹣3ab2)3(﹣4ab2)
(63)(3a﹣2)(a﹣6)
(64)(3a3b﹣9a2b2﹣21a2b3)÷(﹣3a2b)(65)(x+3)(x﹣2)﹣(x﹣2)2
(66)(3x+4y)(3x﹣4y)
(67)(x+3y)(2x﹣y)﹣y(5x+3y)
(68)3(a5)2•(﹣a3)2﹣(2a3)2•(a2)5;(69)4xy+(x﹣2y)2+(x+3y)(3y﹣x)(70)﹣3x2y2•(﹣2xy)2.
(71)(a﹣2b)2+(a+2b)(a﹣2b)
(72).(73).(74)(﹣2xy2)3+(﹣3xy4)(﹣2x2y2)
(75)(2x)3×(﹣3xy2)
(76)(a+3b)(a﹣2b)﹣(2a﹣b)2.
(77)(﹣2x2y)3+(3x2)2•(﹣x2)•y3.
(78)(m2n)3•(﹣m4n)÷(﹣mn)2
(79)(2a﹣1)2(2a+1)2
(80)(x4y+6x3y2﹣x2y3)÷(3x2y)
(81)(2x﹣3y+1)(2x+3y﹣1)
(82)(﹣2x)(4x2﹣2x+1)(83)(6a3﹣4a2+2a)÷2a
(84)(2x﹣y)(2x+y)﹣(x﹣3y)2
(85)(4x2﹣2x3+6x)÷(﹣2x)﹣(2x﹣1)2.(86).(87)[x(xy2+2xy)﹣y(x2y﹣6x2y2)]÷2x2y.(88)x6÷(﹣x)2﹣(x)2•27x2.
(89)(2x+y)(2x﹣3y)+4y(2x+y)
(90)(m+2)(m﹣2)+(m﹣1)(m+5)
(91)[(x+y)2﹣y(2x+y)﹣8x]÷2x.(92)(2xy2﹣6xy)÷2x+y(y+2)
(93)(27a3﹣15a2+6a)÷(3a)
(94)x(x+2y)﹣(x+1)2+2x.
(95)(x2y3)2÷(x3y4)•(﹣4xy)(96)a3•a3+(﹣2a3)2﹣(﹣a2)3.(97)(2x+1)(x+3)﹣6(x2+x﹣1);(98)[x(x2y2﹣xy)﹣y(x2﹣x3y)]+3x2y.(99)[(2x+y)2﹣y(y+2x)﹣4x]÷2x.