部编版八年级数学上册整式的乘除法综合练习20.docx
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部编版八年级数学上册整式的乘除法综合练习20.docx
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部编版八年级数学上册整式的乘除法综合练习20
(2a)3-(5b)3(-2b)3(xy5)2
(-3x3)2(ab)7(-3×102)2(2ab4)3
(109)9(y3)4(yn)8-(y6)5
(109)8(a4)8-(am)4(a4)2•a6
x6•x2a9•a3c•c9
(-2)7×(-2)6×(-2)8xn•x8n+1x3n•x7n+1
111
(-—)2×(-—)4×(-—)3z2•zs2•s6
444
(-6)×(-6)5×(-6)7x•x6s9•s2
111
(-—)3×(-—)3×(-—)3x3m•x2m+1xm•x4m-1
555
(-4x3)(5x+4)-7a(9a-4b)(6x-9y)(-8x)
41
(—ab3-3ab)•—ab3x(x+3)+x(x-3)-x(2x-3)
34
(3x-6)(2x-2)(x-7y)(x-y)
(x-y)(x2+2xy+y2)(x-2y)(x+y)
(a+4)2(3a-b)(3a+b)
(2x2+2)(4x+7)(x2-2x-1)(x-2)
(x+1)(x-2)(x-4)(x+4)
(y-2)(y-1)(y-2)(y+2)
x6÷x330a8b7÷(-5a4b2)
(xy)6÷(xy)4(-48x7y5)÷(-8x6y4)
20x7y8÷4x3y6(15×106)÷(3×103)
-8a9b3c4÷6a7b2(36a3b-36a)÷6a
(4a5-14a2-14a)÷2a(56x2y2-32xy2)÷8xy
(2a)2-(4b)3(-2b)3(xy4)4
(-3x2)2(ab)5(-4×104)3(4ab2)2
(109)9(x5)6(bn)3-(y5)8
(103)5(b3)3-(an)7(a3)8•a4
x2•x6s•s2b6•b2
(-5)4×(-5)7×(-5)4xn•x4n+1x8m•x2m+1
111
(-—)5×(-—)3×(-—)5a3•az9•z8
777
(-5)8×(-5)5×(-5)8b6•b4c4•c5
111
(-—)×(-—)8×(-—)4x2m•x8m+1x2m•x2m-1
222
(-x3)(-7x+3)-5a(8a-3b)(2x+7y)(-3x)
51
(—ab3-6ab)•—ab33x(x+4)+x(x-1)-x(3x-4)
65
(x+9)(x-2)(3x-y)(4x+y)
(3x+y)(x2-xy-y2)(3x-7y)(4x+y)
(3a+3)2(a+b)(a+8b)
(2x2-3)(2x+5)(x2-2x+1)(x+3)
(x+4)(x+2)(x-1)(x+6)
(y+3)(y-2)(y-4)(y-1)
b8÷b716a5b4÷(-8a3b2)
(-x)5÷(-x)3(-24x8y5)÷(-3x2y2)
40x8y4÷5x2y2(42×103)÷(7×102)
-8a3b7c4÷9a2b3(81a3b3-72a)÷9a
(30a4+12a2-18a)÷6a(72xy2-81x2y3)÷9xy
(10a)3-(3b)2(-2b)2(xy4)4
(-6x2)2(xy)6(-2×103)3(4ab4)3
(102)9(b3)9(xm)4-(x2)6
(106)8(x2)9-(bn)3(a4)3•a3
x7•x7x•x5z•z8
(-2)×(-2)7×(-2)4x5n•x8n-1xn•x3n-1
111
(-—)6×(-—)3×(-—)5t8•ta5•a
888
(-9)×(-9)6×(-9)7y6•y9z•z7
111
(-—)×(-—)9×(-—)9ym•y3m-1xn•x2n+1
444
(-2x2)(4x+7)-6a(6a-8b)(4x+7y)(-3x)
51
(—ab3-4ab)•—ab2x(x+3)-2x(4x+4)+x(2x+2)
65
(2x-6)(x-7)(3x-2y)(2x-y)
(x+y)(x2-xy+y2)(x+3y)(4x+y)
(a+4)2(2a-2b)(a-4b)
(4x2-7)(x+4)(4x2+x-1)(2x+1)
(x-2)(x-1)(x-2)(x+4)
(y+1)(y-3)(y+3)(y+1)
a4÷a324a5b6÷(-6a3b4)
(bc)5÷(bc)3(-21x6y7)÷(-3x2y6)
10x7y4÷2x6y3(56×106)÷(7×105)
-4a6b4c3÷7a2b3(15a2b3+25a)÷5a
(25a5-45a3+35a)÷5a(56x3y2+48xy3)÷8xy
(9a)2-(6b)2(-2b)2(xy3)3
(-6x2)3(xy)8(-3×103)2(4ab3)3
(103)4(y3)2(bn)7-(a4)5
(103)9(a9)3-(am)6(a3)9•a3
x•x4x•x7z•z8
(-7)×(-7)2×(-7)5x4m•x5m+1x9n•x6n+1
111
(-—)×(-—)2×(-—)7z9•zc4•c2
999
(-6)4×(-6)5×(-6)9s4•s5a6•a9
111
(-—)5×(-—)5×(-—)4y2m•y3m+1y3m•y5m-1
222
(-2x2)(-6x-1)-5a(9a+7b)(2x-7y)(-6x)
71
(—ab3+4ab)•—abx(2x+4)-4x(x+1)-x(3x-2)
67
(x+3)(4x-3)(x+2y)(4x+y)
(3x-3y)(x2+xy+y2)(x+2y)(3x-y)
(a+4)2(a-8b)(a+b)
(x2-6)(2x+1)(3x2+2x-3)(x+2)
(x-4)(x-2)(x+5)(x-4)
(y+2)(y-1)(y-3)(y-3)
y5÷y354a9b7÷(-6a7b4)
(ab)9÷(ab)4(-24x4y4)÷(-8x2y2)
63x7y8÷7x3y4(24×106)÷(3×102)
-3a9b3c4÷4a7b2(36a3b2-20a)÷4a
(45a4+63a3+54a)÷9a(16x3y2-40xy2)÷8xy
(4a)2-(3b)3(-3b)3(xy2)2
(-2x4)3(xy)4(-2×103)2(4ab2)3
(109)4(x9)3(yn)3-(x5)9
(109)9(b5)7-(am)3(a9)4•a9
x•x7x•x8c7•c8
(-6)×(-6)9×(-6)9x5n•x3n-1x3n•x8n+1
111
(-—)×(-—)5×(-—)2c7•c6s9•s
666
(-5)×(-5)6×(-5)3s•s8y•y2
111
(-—)×(-—)3×(-—)7y6n•y8n+1yn•y8n+1
333
(-x4)(-5x-6)6a(5a-4b)(3x+2y)(-3x)
71
(—ab2+4ab)•—abx(3x+4)+x(x-1)-x(3x+1)
67
(3x-4)(x+8)(x+3y)(x-8y)
(2x-y)(x2-xy-y2)(x-y)(4x-6y)
(a+2)2(a-b)(a+b)
(4x2-7)(x+7)(x2-4x+1)(2x+2)
(x+4)(x-1)(x-1)(x+2)
(y-3)(y-2)(y-3)(y-1)
b9÷b448a9b5÷(-6a8b2)
(-y)8÷(-y)3(-16x7y5)÷(-2x6y2)
9x9y9÷3x2y7(15×106)÷(3×103)
-8a7b6c2÷5a3b5(21a3b+35a)÷7a
(15a6-30a3-10a)÷5a(15x3y+35xy3)÷5xy
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