1.4(x-y)²-z² 2.-16x的四次方+y的四次方3.4x²-25(x-y)² 4.(x-2y)²-20(x-2y)5.4x的四次方-64 分解因式,尽量要有步骤
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![1.4(x-y)²-z² 2.-16x的四次方+y的四次方3.4x²-25(x-y)² 4.(x-2y)²-20(x-2y)5.4x的四次方-64 分解因式,尽量要有步骤](/uploads/image/z/3765890-2-0.jpg?t=1.4%28x-y%29%26%23178%3B-z%26%23178%3B+2.-16x%E7%9A%84%E5%9B%9B%E6%AC%A1%E6%96%B9%2By%E7%9A%84%E5%9B%9B%E6%AC%A1%E6%96%B93.4x%26%23178%3B-25%EF%BC%88x-y%EF%BC%89%26%23178%3B+4.%EF%BC%88x-2y%EF%BC%89%26%23178%3B-20%EF%BC%88x-2y%EF%BC%895.4x%E7%9A%84%E5%9B%9B%E6%AC%A1%E6%96%B9-64+%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%2C%E5%B0%BD%E9%87%8F%E8%A6%81%E6%9C%89%E6%AD%A5%E9%AA%A4)
1.4(x-y)²-z² 2.-16x的四次方+y的四次方3.4x²-25(x-y)² 4.(x-2y)²-20(x-2y)5.4x的四次方-64 分解因式,尽量要有步骤
1.4(x-y)²-z² 2.-16x的四次方+y的四次方
3.4x²-25(x-y)²
4.(x-2y)²-20(x-2y)
5.4x的四次方-64
分解因式,尽量要有步骤
1.4(x-y)²-z² 2.-16x的四次方+y的四次方3.4x²-25(x-y)² 4.(x-2y)²-20(x-2y)5.4x的四次方-64 分解因式,尽量要有步骤
1.4(x-y)²-z²
=[2(x-y)]²-z²
=(2x-2y+z)(2x-2y-z)
2.-16x的四次方+y的四次方
=y的4次方-16x的4次方
=(y²+4x²)(y²-4x²)
=(y²+4x²)(y+2x)(y-2x)
3.4x²-25(x-y)²
=[2x+5(x-y)][2x-5(x-y)]
=(7x-5y)(5y-3x)
4.(x-2y)²-20(x-2y)
=(x-2y)(x-2y-20)
5.4x的四次方-64
=4(x的4次方-16)
=4(x²+4)(x²-4)
=4(x²+4)(x+2)(x-2)