人教版初二数学上册整式的乘法和因式分解练习题大全70Word格式.docx

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人教版初二数学上册整式的乘法和因式分解练习题大全70Word格式.docx

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人教版初二数学上册整式的乘法和因式分解练习题大全70Word格式.docx

-2x(x-2)(x+2)(x+y+2)2

4.3×

3.73952

(2a)2•b3÷

12ab(x4y2+4x4y3z3)÷

x2y

(x+2)2+(4x+2)(2x+5)3(y-z)2-(2y-z)(2y+z)

16x2-y2(q-d)(6x-y)-(q-d)(4x-y)

a2+16ay+64y236-48(q+b)+16(q+b)2

b3-36bx4-16

(3x2y3)2•(-xy2)3(a-4b)(a+b)

-3x(x-2)(x+1)(4x-2y-1)2

30.4×

29.61032

(9a)3•b2•14a2b(x2y2+x3y2z3)•x2y

(x-2)2-(2x+5)(2x+5)2(y+z)2-(4y+z)(2y+z)

x2-4y2(a+p)(x+6y)+(a+p)(x+y)

a2-8ay+16y24+16(c-n)+16(c-n)2

a3-16ax4-1

(3xy3)3•(-xy2)2(a+5b)(4a-6b)

-3x(x-3)(x-5)(x+2y-3)2

2.4×

1.65972

(6a)2•b3•12ab(x3y3+x2y3z2)÷

xy

4(x-1)2+(3x+4)(4x-1)3(y-z)2+(3y-z)(4y+z)

16x2-36y2(n+d)(x+y)+(n+d)(5x+y)

a2+10ax+25x236-72(q+a)+36(q+a)2

a3-25a16x4-256

(2xy)3•(-x2y)2(2a+b)(2a-5b)

-3x(x+2)(x-5)(5x-y-4)2

7.3×

6.7972

(2a)2•b4•4a2b2(x3y3-3x4y2z2)÷

5xy

4(x+2)2-(2x+2)(4x+5)(y+z)2-(4y+z)(2y-z)

x2-9y2(d+q)(6x+y)-(d+q)(6x-y)

a2+8an+16n236-84(q+b)+49(q+b)2

c3-16c16x4-81

(3xy)2•(-xy)3(2a+5b)(2a-6b)

-2x(x+3)(x+1)(x+2y-4)2

40.2×

39.83992

(6a)3•b2÷

18ab(7x4y3+x2y3z3)•xy

(x+3)2+(3x-1)(2x-1)4(y-z)2-(3y-z)(2y+z)

4x2-y2(b-m)(x+5y)-(b-m)(x-y)

a2+20am+100m225-50(d-p)+25(d-p)2

b3-49b16x4-1

(-2xy2)2•(-x2y2)3(a+b)(6a+b)

-2x(x-1)(x+2)(x-4y-4)2

4.2×

3.8100052

(4a)3•b3÷

18a2b(6x3y2-x2y3z4)•2xy

(x+4)2-(3x+5)(3x-4)4(y-z)2+(2y+z)(2y-z)

x2-y2(n-a)(3x-2y)+(n-a)(x+2y)

a2-20an+100n236+72(p+a)+36(p+a)2

b3-64b81x4-16

(-3x3y)2•(x3y2)2(a-4b)(5a-b)

-2x(x+1)(x+2)(4x-y-1)2

6.1×

5.910052

(4a)2•b2•10ab2(8x4y4-x4y4z3)÷

2(x+1)2-(4x+2)(4x-5)(y-z)2+(2y+z)(2y-z)

64x2-49y2(n+c)(x-y)+(n+c)(x+y)

a2-8ab+16b24-16(b-q)+16(b-q)2

c3-9cx4-16

(-2x3y)3•(-xy)2(3a-3b)(a-b)

3x(x-3)(x+3)(3x-5y-2)2

30.2×

29.839992

(6a)2•b3•14ab2(x3y2+7x3y2z4)÷

3xy2

(x+1)2-(4x-2)(4x-4)(y-z)2+(3y+z)(4y+z)

100x2-16y2(b-n)(x-4y)-(b-n)(x+y)

a2+10ay+25y29+36(b-p)+36(b-p)2

d3-25dx4-1

(3x3y3)3•(x2y)2(a+b)(3a+6b)

2x(x-4)(x-2)(x-y-3)2

3.78022

(6a)2•b2÷

20ab2(6x4y4-8x2y4z4)÷

9xy2

(x-2)2+(4x+2)(3x-4)3(y+z)2-(2y-z)(3y+z)

x2-y2(q+d)(x-3y)-(q+d)(5x-y)

a2-12ay+36y29-36(b-p)+36(b-p)2

c3-49cx4-81

(-3x2y2)2•(-x3y3)2(a-6b)(4a+2b)

2x(x-5)(x-5)(2x+y-1)2

39.810052

(3a)2•b2÷

14a2b2(5x3y3-x3y2z4)•8x2y2

2(x+3)2+(2x-2)(2x+4)4(y-z)2-(4y+z)(2y-z)

25x2-36y2(q+b)(x+4y)-(q+b)(6x-2y)

a2+4ay+4y29+18(m-c)+9(m-c)2

c3-64cx4-256

(-2x3y)2•(-xy2)3(4a+b)(5a-b)

3x(x+1)(x+1)(x-y+2)2

30.3×

29.749952

(7a)2•b2•6ab(x4y4+7x4y3z3)•4x2y2

4(x-3)2+(4x+4)(4x-3)(y+z)2+(3y-z)(4y-z)

x2-y2(n+a)(x+y)+(n+a)(6x+6y)

a2-14ay+49y24-8(b+p)+4(b+p)2

c3-9c81x4-256

(3x2y)2•(-xy)3(6a-b)(6a+4b)

-2x(x+2)(x-5)(4x-6y-4)2

60.2×

59.85042

(2a)3•b2÷

4ab(4x4y2-5x3y2z3)•8xy

4(x-1)2+(3x-3)(4x+3)(y+z)2-(2y-z)(4y+z)

49x2-y2(q-a)(3x-y)+(q-a)(x-y)

a2-12ax+36x236+72(d+m)+36(d+m)2

d3-100dx4-81

(-2x2y2)3•(xy)2(4a+2b)(a+6b)

-3x(x+4)(x-4)(x+6y+2)2

70.2×

69.81952

(5a)2•b4•12ab(x3y2+x4y4z2)÷

2xy2

2(x-1)2-(4x+3)(2x-3)(y-z)2+(3y-z)(3y+z)

16x2-y2(a-p)(x+y)-(a-p)(6x+2y)

a2+18am+81m24+8(p+b)+4(p+b)2

d3-49dx4-16

(3x2y)2•(-x2y2)3(a+2b)(6a+6b)

2x(x-1)(x+1)(x-6y-1)2

40.3×

39.73972

(5a)2•b3•12ab(2x3y4+3x4y2z3)÷

4(x+1)2+(4x-4)(2x+4)3(y+z)2+(4y+z)(4y+z)

x2-81y2(d-m)(2x-3y)-(d-m)(5x-4y)

a2-12an+36n216+56(n+d)+49(n+d)2

b3-25bx4-16

(3x2y)3•(-x2y2)3(a-b)(4a+b)

3x(x-4)(x-1)(x+y+1)2

7.1×

6.9972

(2a)3•b3÷

14ab(4x2y2+x3y4z4)•8xy2

(x+4)2+(2x+4)(4x-1)3(y-z)2+(2y+z)(2y-z)

4x2-y2(a-m)(4x-2y)+(a-m)(2x+4y)

a2-4am+4m225-60(m+c)+36(m+c)2

b3-100bx4-1

(2x3y)3•(-xy)2(a-5b)(2a-b)

3x(x-2)(x+1)(4x+y-1)2

3.1×

2.93022

(3a)3•b3÷

6a2b(x3y3+5x4y3z2)÷

(x-3)2+(2x-4)(3x-2)(y+z)2+(2y-z)(2y-z)

x2-4y2(d+p)(x-y)-(d+p)(x+4y)

a2-18an+81n216-16(n+d)+4(n+d)2

a3-49ax4-16

(-3x3y2)2•(-x2y3)2(a-b)(a+b)

-2x(x+3)(x+3)(2x-y-1)2

5.3×

4.79952

(8a)3•b4•14ab2(x3y4-x4y2z3)•x2y

4(x+4)2-(2x+4)(4x+1)(y+z)2-(2y+z)(2y+z)

x2-49y2(b+m)(x-y)+(b+m)(x+5y)

a2+18ax+81x216+48(b-q)+36(b-q)2

b3-16bx4-1

(-3xy)2•(xy2)2(a-b)(6a+b)

-3x(x-5)(x-1)(4x+y+3)2

90.1×

89.959992

(7a)2•b3•12ab(x3y4-x2y4z3)÷

6x2y

4(x-4)2-(4x+4)(4x-4)(y-z)2+(2y-z)(3y+z)

36x2-36y2(n+c)(x+y)-(n+c)(x-y)

a2-6ay+9y236+48(q-a)+16(q-a)2

b3-81bx4-81

(-3x2y)3•(xy)3(4a+b)(a-4b)

-3x(x+4)(x+4)(4x+y+1)2

3.74032

(2a)3•b2•8ab2(8x3y2+x2y4z3)÷

x2y2

4(x+4)2-(2x+1)(2x-3)2(y-z)2-(2y-z)(3y-z)

x2-4y2(p+a)(2x+2y)+(p+a)(x-y)

a2+6an+9n216+48(c+q)+36(c+q)2

c3-4cx4-16

(-3xy)2•(xy)3(a+5b)(2a+6b)

-3x(x+5)(x-3)(x-y-3)2

10.2×

9.880002

(2a)3•b2•20a2b2(x2y2+x2y4z2)•x2y2

(x-1)2-(2x-4)(3x-4)3(y+z)2-(3y-z)(4y+z)

x2-y2(d+n)(5x-3y)+(d+n)(x+5y)

a2+12ay+36y29+18(c-p)+9(c-p)2

c3-49cx4-16

(2x2y2)3•(x3y)2(a-3b)(a-b)

2x(x+1)(x+1)(x+5y-4)2

9.8982

(8a)3•b2•4a2b2(x3y3+x3y4z4)÷

4xy2

2(x-2)2+(2x-5)(3x-1)4(y-z)2+(4y+z)(2y-z)

x2-y2(d+p)(x+y)-(d+p)(2x+5y)

a2+16am+64m225-50(q+c)+25(q+c)2

a3-100a16x4-1

(3x3y)2•(x2y)2(3a-b)(a-2b)

3x(x+1)(x+3)(x-5y-3)2

4.4×

3.64972

(4a)2•b4•6ab2(x2y3+x2y3z4)÷

(x-3)2-(4x-4)(2x-1)3(y+z)2+(3y+z)(3y-z)

64x2-4y2(b+n)(x+4y)-(b+n)(x+5y)

a2+4an+4n29-36(p+b)+36(p+b)2

a3-25ax4-81

(-2x3y2)2•(-xy3)3(a-b)(3a-b)

2x(x-2)(x+4)(x+y-2)2

1.1×

0.930002

(4a)3•b3•2a2b(x3y4+4x3y3z4)÷

(x+2)2+(2x+4)(2x+4)(y-z)2-(3y-z)(2y-z)

49x2-9y2(q-b)(x+2y)+(q-b)(4x+y)

a2-4ax+4x225-20(c-p)+4(c-p)2

c3-16c81x4-256

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