因式分解:X+9+3X+3X; 2ax-10ay+5by-bx 2x+xy-y-4x+5y-6

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因式分解:X+9+3X+3X; 2ax-10ay+5by-bx 2x+xy-y-4x+5y-6

因式分解:X+9+3X+3X; 2ax-10ay+5by-bx 2x+xy-y-4x+5y-6
因式分解:X+9+3X+3X; 2ax-10ay+5by-bx 2x+xy-y-4x+5y-6

因式分解:X+9+3X+3X; 2ax-10ay+5by-bx 2x+xy-y-4x+5y-6
1、x^3+9+3x+3x=(x^3+3x)+(3x+9)=x(x+3)+3(x+3)=(x+3)(x+3) 2、2ax-10ay+5by-bx=(2ax-10ay)+(5by-bx)=2a(x-5y)+b(5y-x)=(2a-b)(x-5y) 3、2x+xy-y-4x+5y-6=(2x-y+2)(x+y-3)