把下列各式因式分解7(a-1)+x(a-1)(2)3(a-b)²+6(b-a)(3)2(m-n)²-m(m-n)(4)x(x-y)²-y(y-x)²(5)m(a²+b²)+n(a²+b²)(6)18(a-b)³-12b(b-a)²(7)
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![把下列各式因式分解7(a-1)+x(a-1)(2)3(a-b)²+6(b-a)(3)2(m-n)²-m(m-n)(4)x(x-y)²-y(y-x)²(5)m(a²+b²)+n(a²+b²)(6)18(a-b)³-12b(b-a)²(7)](/uploads/image/z/10181843-35-3.jpg?t=%E6%8A%8A%E4%B8%8B%E5%88%97%E5%90%84%E5%BC%8F%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A37%EF%BC%88a-1%EF%BC%89%2Bx%EF%BC%88a-1%EF%BC%89%EF%BC%882%EF%BC%893%EF%BC%88a-b%EF%BC%89%26%23178%3B%2B6%EF%BC%88b-a%29%283%292%28m-n%29%26%23178%3B-m%EF%BC%88m-n%EF%BC%89%EF%BC%884%EF%BC%89x%EF%BC%88x-y%EF%BC%89%26%23178%3B-y%EF%BC%88y-x%EF%BC%89%26%23178%3B%EF%BC%885%EF%BC%89m%EF%BC%88a%26%23178%3B%2Bb%26%23178%3B%EF%BC%89%2Bn%EF%BC%88a%26%23178%3B%2Bb%26%23178%3B%EF%BC%89%EF%BC%886%EF%BC%8918%EF%BC%88a-b%EF%BC%89%26%23179%3B-12b%EF%BC%88b-a%EF%BC%89%26%23178%3B%EF%BC%887%EF%BC%89)
把下列各式因式分解7(a-1)+x(a-1)(2)3(a-b)²+6(b-a)(3)2(m-n)²-m(m-n)(4)x(x-y)²-y(y-x)²(5)m(a²+b²)+n(a²+b²)(6)18(a-b)³-12b(b-a)²(7)
把下列各式因式分解7(a-1)+x(a-1)
(2)3(a-b)²+6(b-a)
(3)2(m-n)²-m(m-n)
(4)x(x-y)²-y(y-x)²
(5)m(a²+b²)+n(a²+b²)
(6)18(a-b)³-12b(b-a)²
(7)(2a+b)(2a-3b)-3a(2a+b)
(8)x(x+y)(x-y)-x(x+y)²
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把下列各式因式分解7(a-1)+x(a-1)(2)3(a-b)²+6(b-a)(3)2(m-n)²-m(m-n)(4)x(x-y)²-y(y-x)²(5)m(a²+b²)+n(a²+b²)(6)18(a-b)³-12b(b-a)²(7)
(1)7(a-1)+x(a-1)=(a-1)(x+7)
(2)3(a-b)2+6(b-a) =(a-b)(3a-3b-6)=3(a-b)(a-b-2)
(3)2(m-n)2 - m(m-n)=(m-n)(2m-2n-m)=(m-n)(m-2n)
(4)x(x-y)2 - y(y-x)2= (x-y)2(x-y)=(x-y)3
(5)m(a2+b2)+n(a2+b2)=(a2+b2)(m+n)
(6)18(a-b)三次方-12b(b-a)=6(a-b)[3(a-b)2+2b]=6(a-b)(3a2-6ab+3b2+2b)
(7)(2a+b)(2a-3b)-3a(2a+b)=(2a+b)(2a-3b-3a)=-(2a+b)(a+3b)
(8)x(x+y)(x-y)-x(x+y)2=-2xy(x+y)
7(a-1)+x(a-1)=(a-1)(7+x) 3(a-b)²+6(b-a)=3(a-b)(a-b+2) 2(m-n)²-m(m-n)=(m-n)(m-2n) x(x-y)²-y(y-x)²=(x-y)^3 m(a&...
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7(a-1)+x(a-1)=(a-1)(7+x) 3(a-b)²+6(b-a)=3(a-b)(a-b+2) 2(m-n)²-m(m-n)=(m-n)(m-2n) x(x-y)²-y(y-x)²=(x-y)^3 m(a²+b²)+n(a²+b²)=(a²+b²)(m+n) 18(a-b)³-12b(b-a)²=6(a-b)^2(3a-5b) (2a+b)(2a-3b)-3a(2a+b) = -(2a+b)(a+3b) x(x+y)(x-y)-x(x+y)²=-2xy(x+y)
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