因式分解:1、x²(x-y)+(y-x);2、4x²y-12xy+9y;3、4(a+b)²-4(a+b)+14、a的4次方-2a²b²+b的4次方
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![因式分解:1、x²(x-y)+(y-x);2、4x²y-12xy+9y;3、4(a+b)²-4(a+b)+14、a的4次方-2a²b²+b的4次方](/uploads/image/z/806614-70-4.jpg?t=%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%EF%BC%9A1%E3%80%81x%26%23178%3B%EF%BC%88x-y%EF%BC%89%2B%EF%BC%88y-x%EF%BC%89%EF%BC%9B2%E3%80%814x%26%23178%3By-12xy%2B9y%EF%BC%9B3%E3%80%814%EF%BC%88a%2Bb%EF%BC%89%26%23178%3B-4%EF%BC%88a%2Bb%EF%BC%89%2B14%E3%80%81a%E7%9A%844%E6%AC%A1%E6%96%B9-2a%26%23178%3Bb%26%23178%3B%2Bb%E7%9A%844%E6%AC%A1%E6%96%B9)
因式分解:1、x²(x-y)+(y-x);2、4x²y-12xy+9y;3、4(a+b)²-4(a+b)+14、a的4次方-2a²b²+b的4次方
因式分解:1、x²(x-y)+(y-x);2、4x²y-12xy+9y;3、4(a+b)²-4(a+b)+1
4、a的4次方-2a²b²+b的4次方
因式分解:1、x²(x-y)+(y-x);2、4x²y-12xy+9y;3、4(a+b)²-4(a+b)+14、a的4次方-2a²b²+b的4次方
1.x²(x-y)+(y-x)
=x²(x-y)-(x-y)
=(x-y)(x²-1)
=(x-y)(x+1)(x-1);
2.4x²y-12xy+9y
=y(4x²-12x+9)
=y(2x-3)²
3.4(a+b)²-4(a+b)+1
=[2(a+b)-1]²
=(2a+2b-1)²
4.a^4-2a²b²+b^4
=(a²-b²)²
=(a+b)²(a-b)²
(x-y)(x+1)(x-1) 2.(2x-3)的平方*y 3.(2a+2b-1)的平方 4.