(1)x²(x-3)+3-x (2)4(x+2y)²-9(x-y)² 因式分解
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![(1)x²(x-3)+3-x (2)4(x+2y)²-9(x-y)² 因式分解](/uploads/image/z/431148-12-8.jpg?t=%EF%BC%881%EF%BC%89x%26%23178%3B%28x-3%29%2B3-x+%EF%BC%882%EF%BC%894%EF%BC%88x%2B2y%EF%BC%89%26%23178%3B-9%EF%BC%88x-y%EF%BC%89%26%23178%3B+%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3)
(1)x²(x-3)+3-x (2)4(x+2y)²-9(x-y)² 因式分解
(1)x²(x-3)+3-x (2)4(x+2y)²-9(x-y)² 因式分解
(1)x²(x-3)+3-x (2)4(x+2y)²-9(x-y)² 因式分解
(1)=x²(x-3)-(x-3)
=(x²-1)(x-3)
=(x-1)(x+1)(x-3)
(2) =(2x+4y)²-(3x-3y)²
=(2x+4y-3x+3y)(2x+4y+3x-3y)
=(7y-x)(5x+y)