七年级上半学期数学同步辅导与能力训练 9.13 提取公因式法(2)答案 答的好的再加100分@!明天就要交了T T1.填空(1)y-x=-( )(2)-n-m=-( )(3)x(b-a)=( )(a-b)(4)3(y-x平方)=-3( )(5)2a(y-x)平方=( )(x-y)立方(6)-3a(y-x
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![七年级上半学期数学同步辅导与能力训练 9.13 提取公因式法(2)答案 答的好的再加100分@!明天就要交了T T1.填空(1)y-x=-( )(2)-n-m=-( )(3)x(b-a)=( )(a-b)(4)3(y-x平方)=-3( )(5)2a(y-x)平方=( )(x-y)立方(6)-3a(y-x](/uploads/image/z/2989374-6-4.jpg?t=%E4%B8%83%E5%B9%B4%E7%BA%A7%E4%B8%8A%E5%8D%8A%E5%AD%A6%E6%9C%9F%E6%95%B0%E5%AD%A6%E5%90%8C%E6%AD%A5%E8%BE%85%E5%AF%BC%E4%B8%8E%E8%83%BD%E5%8A%9B%E8%AE%AD%E7%BB%83+9.13+%E6%8F%90%E5%8F%96%E5%85%AC%E5%9B%A0%E5%BC%8F%E6%B3%95%EF%BC%882%EF%BC%89%E7%AD%94%E6%A1%88+%E7%AD%94%E7%9A%84%E5%A5%BD%E7%9A%84%E5%86%8D%E5%8A%A0100%E5%88%86%40%21%E6%98%8E%E5%A4%A9%E5%B0%B1%E8%A6%81%E4%BA%A4%E4%BA%86T+T1.%E5%A1%AB%E7%A9%BA%281%29y-x%3D-%28+%29%282%29-n-m%3D-%28+%29%283%29x%28b-a%29%3D%28+%29%28a-b%29%284%293%28y-x%E5%B9%B3%E6%96%B9%29%3D-3%28+%29%285%292a%28y-x%29%E5%B9%B3%E6%96%B9%3D%28+%29%28x-y%29%E7%AB%8B%E6%96%B9%286%29-3a%28y-x)
七年级上半学期数学同步辅导与能力训练 9.13 提取公因式法(2)答案 答的好的再加100分@!明天就要交了T T1.填空(1)y-x=-( )(2)-n-m=-( )(3)x(b-a)=( )(a-b)(4)3(y-x平方)=-3( )(5)2a(y-x)平方=( )(x-y)立方(6)-3a(y-x
七年级上半学期数学同步辅导与能力训练 9.13 提取公因式法(2)答案 答的好的再加100分@!
明天就要交了T T
1.填空
(1)y-x=-( )
(2)-n-m=-( )
(3)x(b-a)=( )(a-b)
(4)3(y-x平方)=-3( )
(5)2a(y-x)平方=( )(x-y)立方
(6)-3a(y-x)立方=( )(x-y)立方
(7)(x+y)(y-x)=-(x+y)( )
(8)(2+x)(x-2)=( )(x+2)(x-2)
2.把下列各式分解因式
2m(a-c)-5(a-c)
3a(x+y)平方-2(y+x)平方
x(y=z)-y(z-y)
mn(n-m)-n(m-n)
x(a-x)-y(x-a)+3(a-x)
3(x+y)平方-2(x+y)
3(a+b)-(4b+b)平方
6(a-b)平方-8(a-b)平方
2(x-y)(x+y)-(x-y)平方
x平方(m-n)五次方-xy(n-m)四次方
x平方(m-n)五次方-xy(n-m)三次方
(2a平方-ab)(c-d)+(2a平方-3ab)(d-c)
七年级上半学期数学同步辅导与能力训练 9.13 提取公因式法(2)答案 答的好的再加100分@!明天就要交了T T1.填空(1)y-x=-( )(2)-n-m=-( )(3)x(b-a)=( )(a-b)(4)3(y-x平方)=-3( )(5)2a(y-x)平方=( )(x-y)立方(6)-3a(y-x
(1)y-x=-(x-y )
(2)-n-m=-( m+n )
(3)x(b-a)=( -x )(a-b)
(4)3(y-x平方)=-3( x平方-y )
(5)2a(y-x)平方=( -2a )(x-y)立方
(6)-3a(y-x)立方=( 3a )(x-y)立方
(7)(x+y)(y-x)=-(x+y)( x-y )
(8)(2+x)(x-2)=( 1 )(x+2)(x-2)
2.把下列各式分解因式
2m(a-c)-5(a-c)=(2m-5)(a-c)
3a(x+y)平方-2(y+x)平方=(3a-2)(x+y)平方
x(y=z)-y(z-y)=(x+y)(y-z)
mn(n-m)-n(m-n)=n(m+1)(n-m)
x(a-x)-y(x-a)+3(a-x)=(x+y+3)(a-x)
3(x+y)平方-2(x+y)=(x+y)(3x+3y-2)
3(a+b)-(4b+b)平方 是不是打错了
6(a-b)平方-8(a-b)=-2(a-b)平方
2(x-y)(x+y)-(x-y)平方=(x-y)(x+y)
x平方(m-n)五次方-xy(n-m)四次方=x(n-m)四次方(x(m-n)-y)
x平方(m-n)五次方-xy(n-m)三次方=x((m-n)三次方)(x(m-n)+y)
(2a平方-ab)(c-d)+(2a平方-3ab)(d-c)=a(c-d)4b
1 (1) x-y (2)m+n (3)-x (4)(x²-y) (5)-2a/x-y(6)3a(7)x-y (8)- 2.(1)原式=(a-c)(2m-5)(2)原式=(x+y)²(3a-2)(3)原式=x(y-z)+y(y-z)=(y-z)(x+y)(4)原式=mn(n-m)+n(n-m)=n(n-m)(m+1)(5)原式=x(a-x)+y(a-x)+3(...
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1 (1) x-y (2)m+n (3)-x (4)(x²-y) (5)-2a/x-y(6)3a(7)x-y (8)- 2.(1)原式=(a-c)(2m-5)(2)原式=(x+y)²(3a-2)(3)原式=x(y-z)+y(y-z)=(y-z)(x+y)(4)原式=mn(n-m)+n(n-m)=n(n-m)(m+1)(5)原式=x(a-x)+y(a-x)+3(a-x)=(a-x)(x+y+3)(6)(x+y)[(3(x+y)-2]=(x+y)(3x+3y-2)(7)错不能分解(8)原式=-2(a-b)²(9)))原式=(x-y)[2(x+y)-(x-y)]=(x-y)(2x+2y-x+y)=(x-y)(x+3y)(10)原式=x²(m-n)五次方-xy(m-n)四次方=x(m-n)四次方(mx-nx-y)(11))原式=x平方(m-n)五次方+xy(m-n)三次方=x(m-n)三次方(m²-2mn+n²+y)(12)原式=(2a²-ab)(c-d)-(2a²-3ab)(c-d)=(c-d)(2a²-ab-2a²+3ab)=2ab(c-d)
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(1) x-y (2)m+n (3)-x (4)(x²-y) (5)-2a/x-y(6)3a(7)x-y (8)- 2.(1)原式=(a-c)(2m-5)(2)原式=(x+y)²(3a-2)(3)原式=x(y-z)+y(y-z)=(y-z)(x+y)(4)原式=mn(n-m)+n(n-m)=n(n-m)(m+1)(5)原式=x(a-x)+y(a-x)+3(a-x)=...
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(1) x-y (2)m+n (3)-x (4)(x²-y) (5)-2a/x-y(6)3a(7)x-y (8)- 2.(1)原式=(a-c)(2m-5)(2)原式=(x+y)²(3a-2)(3)原式=x(y-z)+y(y-z)=(y-z)(x+y)(4)原式=mn(n-m)+n(n-m)=n(n-m)(m+1)(5)原式=x(a-x)+y(a-x)+3(a-x)=(a-x)(x+y+3)(6)(x+y)[(3(x+y)-2]=(x+y)(3x+3y-2)(7)错不能分解(8)原式=-2(a-b)²(9)))原式=(x-y)[2(x+y)-(x-y)]=(x-y)(2x+2y-x+y)=(x-y)(x+3y)(10)原式=x²(m-n)五次方-xy(m-n)四次方=x(m-n)四次方(mx-nx-y)(11))原式=x平方(m-n)五次方+xy(m-n)三次方=x(m-n)三次方
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