14x²+3x-27因式分解,2(x+y)²(x-y)-4(x+y)³还有(x²-2x)²+2(x²-2x)+1
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![14x²+3x-27因式分解,2(x+y)²(x-y)-4(x+y)³还有(x²-2x)²+2(x²-2x)+1](/uploads/image/z/263612-20-2.jpg?t=14x%26%23178%3B%2B3x-27%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%2C2%EF%BC%88x%2By%EF%BC%89%26%23178%3B%EF%BC%88x-y%EF%BC%89-4%28x%2By%EF%BC%89%26%23179%3B%E8%BF%98%E6%9C%89%EF%BC%88x%26%23178%3B-2x%EF%BC%89%26%23178%3B%2B2%EF%BC%88x%26%23178%3B-2x%EF%BC%89%2B1)
14x²+3x-27因式分解,2(x+y)²(x-y)-4(x+y)³还有(x²-2x)²+2(x²-2x)+1
14x²+3x-27因式分解,2(x+y)²(x-y)-4(x+y)³
还有(x²-2x)²+2(x²-2x)+1
14x²+3x-27因式分解,2(x+y)²(x-y)-4(x+y)³还有(x²-2x)²+2(x²-2x)+1
14x²+3x-27
=(2x+3)(7x-9)
2(x+y)²(x-y)-4(x+y)³
=2(x+y)²[(x-y)-2(x+y)]
=2(x+y)²(x-y-2x-2y)
=2(x+y)²(-x-3y)
=-2(x+y)²(x+3y)
(x²-2x)²+2(x²-2x)+1
=(x²-2x+1)²
=(x-1)^4