整式的乘法题目及答案(100题)
2个回答
2013-05-12
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52.(6×108)(7×109)(4×104).
53.(-5xn+1y)�6�1(-2x).
54.(-3ab)�6�1(-a2c)�6�16ab2.
55.(-4a)�6�1(2a2+3a-1).
58.(3m-n)(m-2n).
59.(x+2y)(5a+3b).
60.(-ab)3�6�1(-a2b)�6�1(-a2b4c)2.
61.[(-a)2m]3�6�1a3m+[(-a)5m]2.
62.xn+1(xn-xn-1+x).
63.(x+y)(x2-xy+y2).
65.5x(x2+2x+1)-(2x+3)(x-5).
67.(2x-3)(x+4).
70.(-2ambn)(-a2bn)(-3ab2).
74.(m-n)(m5+m4n+m3n2+m2n3+mn4+n5).
75.(2a2-1)(a-4)(a2+3)(2a-5).
76.2[(x+2)(x+1)-3]+(x-1)(x-2)-3x(x+3).
77.(0.3a3b4)2�6�1(-0.2a4b3)3.
78.(-4xy3)�6�1(-xy)+(-3xy2)2.
80.(5a3+2a-a2-3)(2-a+4a2).
81.(3x4-2x2+x-3)(4x3-x2+5).
83.(3am+2bn+2)(2am+2am-2bn-2+3bn).
86.[(-a2b)3]3�6�1(-ab2).
87.(-2ab2)3�6�1(3a2b-2ab-4b2).
91.(-2xmyn)3�6�1(-x2yn)�6�1(-3xy2)2.
92.(0.2a-1.5b+1)(0.4a-4b-0.5).
93.-8(a-b)3�6�13(b-a).
94.(x+3y+4)(2x-y).
96.y[y-3(x-z)]+y[3z-(y-3x)].
52.(6×108)(7×109)(4×104).
53.(-5xn+1y)�6�1(-2x).
54.(-3ab)�6�1(-a2c)�6�16ab2.
55.(-4a)�6�1(2a2+3a-1).
58.(3m-n)(m-2n).
59.(x+2y)(5a+3b).
60.(-ab)3�6�1(-a2b)�6�1(-a2b4c)2.
61.[(-a)2m]3�6�1a3m+[(-a)5m]2.
62.xn+1(xn-xn-1+x).
63.(x+y)(x2-xy+y2).
65.5x(x2+2x+1)-(2x+3)(x-5).
67.(2x-3)(x+4).
70.(-2ambn)(-a2bn)(-3ab2).
74.(m-n)(m5+m4n+m3n2+m2n3+mn4+n5).
75.(2a2-1)(a-4)(a2+3)(2a-5).
76.2[(x+2)(x+1)-3]+(x-1)(x-2)-3x(x+3).
77.(0.3a3b4)2�6�1(-0.2a4b3)3.
78.(-4xy3)�6�1(-xy)+(-3xy2)2.
80.(5a3+2a-a2-3)(2-a+4a2).
81.(3x4-2x2+x-3)(4x3-x2+5).
83.(3am+2bn+2)(2am+2am-2bn-2+3bn).
86.[(-a2b)3]3�6�1(-ab2).
87.(-2ab2)3�6�1(3a2b-2ab-4b2).
91.(-2xmyn)3�6�1(-x2yn)�6�1(-3xy2)2.
92.(0.2a-1.5b+1)(0.4a-4b-0.5).
93.-8(a-b)3�6�13(b-a).
94.(x+3y+4)(2x-y).
96.y[y-3(x-z)]+y[3z-(y-3x)].
97.计算[(-a)2m]3�6�1a3m+[(-a)3m]3(m为自然数).
1, (m+2)(m2+4)(m+2)
=(m+2) (m+2) (m2+4)
=( m2+4m+4) (m2+4)
=(m2+4) (m2+4)+4m(m2+4)
=m4+8m+16+4m3+16m
2,20022-2001*2003
=(2001+1)(2003-1)-2001*2003
=2001*2003+2001+2003+1-2001*2003
=2001+2003+1
3, (x-5)(x+5)-(x+1)(x+5)
=x2-25-(x2+6x+5)
=-6x-30
4, (-a+2b的平方)-(a+2b)(2b-a)
=(2b-a) (2b-a)-(2b+a)(2b-a)
=4b2-4ab+a2-4b2+a2
=2 a2-4ab1) 66x+17y=3967
25x+y=1200
答案:x=48 y=47
(2) 18x+23y=2303
74x-y=1998
答案:x=27 y=79
(3) 44x+90y=7796
44x+y=3476
答案:x=79 y=48
(4) 76x-66y=4082
30x-y=2940
答案:x=98 y=51
(5) 67x+54y=8546
71x-y=5680
答案:x=80 y=59
(6) 42x-95y=-1410
21x-y=1575
答案:x=75 y=48
(7) 47x-40y=853
34x-y=2006
答案:x=59 y=48
(8) 19x-32y=-1786
75x+y=4950
答案:x=66 y=95
(9) 97x+24y=7202
58x-y=2900
答案:x=50 y=98
(10) 42x+85y=6362
63x-y=1638
答案:x=26 y=62(1)3x^4*4x^3=( )
(2)(-x^2)^2*(-3xy)*(2y^2)^3
(3)(-2x)^2*(x^2-1/2X+1)
(4)2m^2-n(5m-n)-m(2m-5n)
(5)已知xy^2=-3,求-xy(x^2y^5-xy^3-y)的值
(6)已知ab=3,求(2a^3b^2-3a^2b+4a)*(-2b)
(7)-4x(2x^2+3x-1)
(8)-3x^2(2xy+y^2-2)
(9)(-1/3 a^2-3ab)·3/4ab^2
(10)2A乘6A的平方
(11)(-4XY的3次)(-2X的平方)
(12)(2*10的平方)*(3*10的5次)
(13)A(2A的平方+1)
(14)(-4X的平方+6X)·(-1/2X的平方)
(15)(-2A)*A-(-2A)的平方
(16)(-2X的平方Y)·(-2/3XY)·(-8XY)
(17)已知xy的2次方=-2,求-xy(x的2次方-xy的3次方-y)的值
(18)(-4x^2+6x)×(-1/2x^2)
(19)已知长方体的长、宽、高分别为X,2X,3X,求该长方形的表面积与体积
(20)(2-4/x)`(-4X
53.(-5xn+1y)�6�1(-2x).
54.(-3ab)�6�1(-a2c)�6�16ab2.
55.(-4a)�6�1(2a2+3a-1).
58.(3m-n)(m-2n).
59.(x+2y)(5a+3b).
60.(-ab)3�6�1(-a2b)�6�1(-a2b4c)2.
61.[(-a)2m]3�6�1a3m+[(-a)5m]2.
62.xn+1(xn-xn-1+x).
63.(x+y)(x2-xy+y2).
65.5x(x2+2x+1)-(2x+3)(x-5).
67.(2x-3)(x+4).
70.(-2ambn)(-a2bn)(-3ab2).
74.(m-n)(m5+m4n+m3n2+m2n3+mn4+n5).
75.(2a2-1)(a-4)(a2+3)(2a-5).
76.2[(x+2)(x+1)-3]+(x-1)(x-2)-3x(x+3).
77.(0.3a3b4)2�6�1(-0.2a4b3)3.
78.(-4xy3)�6�1(-xy)+(-3xy2)2.
80.(5a3+2a-a2-3)(2-a+4a2).
81.(3x4-2x2+x-3)(4x3-x2+5).
83.(3am+2bn+2)(2am+2am-2bn-2+3bn).
86.[(-a2b)3]3�6�1(-ab2).
87.(-2ab2)3�6�1(3a2b-2ab-4b2).
91.(-2xmyn)3�6�1(-x2yn)�6�1(-3xy2)2.
92.(0.2a-1.5b+1)(0.4a-4b-0.5).
93.-8(a-b)3�6�13(b-a).
94.(x+3y+4)(2x-y).
96.y[y-3(x-z)]+y[3z-(y-3x)].
52.(6×108)(7×109)(4×104).
53.(-5xn+1y)�6�1(-2x).
54.(-3ab)�6�1(-a2c)�6�16ab2.
55.(-4a)�6�1(2a2+3a-1).
58.(3m-n)(m-2n).
59.(x+2y)(5a+3b).
60.(-ab)3�6�1(-a2b)�6�1(-a2b4c)2.
61.[(-a)2m]3�6�1a3m+[(-a)5m]2.
62.xn+1(xn-xn-1+x).
63.(x+y)(x2-xy+y2).
65.5x(x2+2x+1)-(2x+3)(x-5).
67.(2x-3)(x+4).
70.(-2ambn)(-a2bn)(-3ab2).
74.(m-n)(m5+m4n+m3n2+m2n3+mn4+n5).
75.(2a2-1)(a-4)(a2+3)(2a-5).
76.2[(x+2)(x+1)-3]+(x-1)(x-2)-3x(x+3).
77.(0.3a3b4)2�6�1(-0.2a4b3)3.
78.(-4xy3)�6�1(-xy)+(-3xy2)2.
80.(5a3+2a-a2-3)(2-a+4a2).
81.(3x4-2x2+x-3)(4x3-x2+5).
83.(3am+2bn+2)(2am+2am-2bn-2+3bn).
86.[(-a2b)3]3�6�1(-ab2).
87.(-2ab2)3�6�1(3a2b-2ab-4b2).
91.(-2xmyn)3�6�1(-x2yn)�6�1(-3xy2)2.
92.(0.2a-1.5b+1)(0.4a-4b-0.5).
93.-8(a-b)3�6�13(b-a).
94.(x+3y+4)(2x-y).
96.y[y-3(x-z)]+y[3z-(y-3x)].
97.计算[(-a)2m]3�6�1a3m+[(-a)3m]3(m为自然数).
1, (m+2)(m2+4)(m+2)
=(m+2) (m+2) (m2+4)
=( m2+4m+4) (m2+4)
=(m2+4) (m2+4)+4m(m2+4)
=m4+8m+16+4m3+16m
2,20022-2001*2003
=(2001+1)(2003-1)-2001*2003
=2001*2003+2001+2003+1-2001*2003
=2001+2003+1
3, (x-5)(x+5)-(x+1)(x+5)
=x2-25-(x2+6x+5)
=-6x-30
4, (-a+2b的平方)-(a+2b)(2b-a)
=(2b-a) (2b-a)-(2b+a)(2b-a)
=4b2-4ab+a2-4b2+a2
=2 a2-4ab1) 66x+17y=3967
25x+y=1200
答案:x=48 y=47
(2) 18x+23y=2303
74x-y=1998
答案:x=27 y=79
(3) 44x+90y=7796
44x+y=3476
答案:x=79 y=48
(4) 76x-66y=4082
30x-y=2940
答案:x=98 y=51
(5) 67x+54y=8546
71x-y=5680
答案:x=80 y=59
(6) 42x-95y=-1410
21x-y=1575
答案:x=75 y=48
(7) 47x-40y=853
34x-y=2006
答案:x=59 y=48
(8) 19x-32y=-1786
75x+y=4950
答案:x=66 y=95
(9) 97x+24y=7202
58x-y=2900
答案:x=50 y=98
(10) 42x+85y=6362
63x-y=1638
答案:x=26 y=62(1)3x^4*4x^3=( )
(2)(-x^2)^2*(-3xy)*(2y^2)^3
(3)(-2x)^2*(x^2-1/2X+1)
(4)2m^2-n(5m-n)-m(2m-5n)
(5)已知xy^2=-3,求-xy(x^2y^5-xy^3-y)的值
(6)已知ab=3,求(2a^3b^2-3a^2b+4a)*(-2b)
(7)-4x(2x^2+3x-1)
(8)-3x^2(2xy+y^2-2)
(9)(-1/3 a^2-3ab)·3/4ab^2
(10)2A乘6A的平方
(11)(-4XY的3次)(-2X的平方)
(12)(2*10的平方)*(3*10的5次)
(13)A(2A的平方+1)
(14)(-4X的平方+6X)·(-1/2X的平方)
(15)(-2A)*A-(-2A)的平方
(16)(-2X的平方Y)·(-2/3XY)·(-8XY)
(17)已知xy的2次方=-2,求-xy(x的2次方-xy的3次方-y)的值
(18)(-4x^2+6x)×(-1/2x^2)
(19)已知长方体的长、宽、高分别为X,2X,3X,求该长方形的表面积与体积
(20)(2-4/x)`(-4X
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