4x²*²-13x²+9(因式分解)4乘以x的四次方-13乘以x²+9,
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![4x²*²-13x²+9(因式分解)4乘以x的四次方-13乘以x²+9,](/uploads/image/z/363533-5-3.jpg?t=4x%26%23178%3B%2A%26%23178%3B%EF%BC%8D13x%26%23178%3B%EF%BC%8B9%EF%BC%88%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%EF%BC%894%E4%B9%98%E4%BB%A5x%E7%9A%84%E5%9B%9B%E6%AC%A1%E6%96%B9%EF%BC%8D13%E4%B9%98%E4%BB%A5x%26%23178%3B%EF%BC%8B9%2C)
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4x²*²-13x²+9(因式分解)4乘以x的四次方-13乘以x²+9,
4x²*²-13x²+9(因式分解)
4乘以x的四次方-13乘以x²+9,
4x²*²-13x²+9(因式分解)4乘以x的四次方-13乘以x²+9,
原式=(4x²-9)(x²-1)
=(2x+3)(2x-3)(x+1)(x-1)