分解因式 (1).(x³-x²)+(x-1)= (2).ax-bx-ay+by= (3).x³z-4x²yz+4xy²z=
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![分解因式 (1).(x³-x²)+(x-1)= (2).ax-bx-ay+by= (3).x³z-4x²yz+4xy²z=](/uploads/image/z/3151788-60-8.jpg?t=%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F+%EF%BC%881%EF%BC%89.%EF%BC%88x%26%23179%3B-x%26%23178%3B%EF%BC%89%2B%EF%BC%88x-1%EF%BC%89%3D+%282%29.ax-bx-ay%2Bby%3D+%EF%BC%883%EF%BC%89.x%26%23179%3Bz-4x%26%23178%3Byz%2B4xy%26%23178%3Bz%3D)
分解因式 (1).(x³-x²)+(x-1)= (2).ax-bx-ay+by= (3).x³z-4x²yz+4xy²z=
分解因式 (1).(x³-x²)+(x-1)= (2).ax-bx-ay+by= (3).x³z-4x²yz+4xy²z=
分解因式 (1).(x³-x²)+(x-1)= (2).ax-bx-ay+by= (3).x³z-4x²yz+4xy²z=
(1)
(x³-x²)+(x-1)
=x²(x-1)+(x-1)
=(x²+1)(x-1)
(2).
ax-bx-ay+by
=x(a-b)-y(a-b)
=(a-b)(x-y)
(3).
x³z-4x²yz+4xy²z
=xz(x²-4xy+4y²)
=xz(x-2y)²
火星语言?(2)=(a-b)*(x-y)