分解因式:1、(χ+ρ)²-﹙Χ+q)² 2、(a+b)²-12(a+b)+36 3、(2a-b)²+8ab5、(x+y)²-4(x+y-1) 6、4+(a-1)(a-5) 7、 8(x²-2y²)-x(7x+y)+xy
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 12:04:15
![分解因式:1、(χ+ρ)²-﹙Χ+q)² 2、(a+b)²-12(a+b)+36 3、(2a-b)²+8ab5、(x+y)²-4(x+y-1) 6、4+(a-1)(a-5) 7、 8(x²-2y²)-x(7x+y)+xy](/uploads/image/z/10771386-42-6.jpg?t=%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%EF%BC%9A1%E3%80%81%EF%BC%88%CF%87%2B%CF%81%EF%BC%89%26%23178%3B%EF%BC%8D%EF%B9%99%CE%A7%EF%BC%8Bq%EF%BC%89%26%23178%3B+2%E3%80%81%28a%2Bb%29%26%23178%3B%EF%BC%8D12%28a%2Bb%29%2B36+3%E3%80%81%282a%EF%BC%8Db%29%26%23178%3B%2B8ab5%E3%80%81%EF%BC%88x%2By%29%26%23178%3B%EF%BC%8D4%28x%2By%EF%BC%8D1%29+6%E3%80%814%2B%28a%EF%BC%8D1%29%28a%EF%BC%8D5%29+7%E3%80%81+8%EF%BC%88x%26%23178%3B%EF%BC%8D2y%26%23178%3B%29%EF%BC%8Dx%287x%2By%29%EF%BC%8Bxy)
分解因式:1、(χ+ρ)²-﹙Χ+q)² 2、(a+b)²-12(a+b)+36 3、(2a-b)²+8ab5、(x+y)²-4(x+y-1) 6、4+(a-1)(a-5) 7、 8(x²-2y²)-x(7x+y)+xy
分解因式:1、(χ+ρ)²-﹙Χ+q)² 2、(a+b)²-12(a+b)+36 3、(2a-b)²+8ab
5、(x+y)²-4(x+y-1) 6、4+(a-1)(a-5) 7、 8(x²-2y²)-x(7x+y)+xy
分解因式:1、(χ+ρ)²-﹙Χ+q)² 2、(a+b)²-12(a+b)+36 3、(2a-b)²+8ab5、(x+y)²-4(x+y-1) 6、4+(a-1)(a-5) 7、 8(x²-2y²)-x(7x+y)+xy
1、(χ+ρ)²-﹙Χ+q)²
=(x+p+x+q)(x+p-x-q)
=(2x+p+q)(p-q)
2、(a+b)²-12(a+b)+36
=(a+b-6)²
3、(2a-b)²+8ab
=4a²-4ab+b²+8ab
=4a²+4ab+b²
=(2a+b)²
5、(x+y)²-4(x+y-1)
=(x+y)²-4(x+y)+4
=(x+y-2)²
6、4+(a-1)(a-5)
=4+a²-6a+5
=a²-6a+9
=(a-3)²
7、 8(x²-2y²)-x(7x+y)+xy
=8x²-16y²-7x²-xy+xy
=x²-16y²
=(x+4y)(x-4y)