3道因式分解ax-ay-bx+by=___________6x^2-7x+2=___________3x^2+14xy-5y^2=_________

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3道因式分解ax-ay-bx+by=___________6x^2-7x+2=___________3x^2+14xy-5y^2=_________3道因式分解ax-ay-bx+by=________

3道因式分解ax-ay-bx+by=___________6x^2-7x+2=___________3x^2+14xy-5y^2=_________
3道因式分解
ax-ay-bx+by=___________
6x^2-7x+2=___________
3x^2+14xy-5y^2=_________

3道因式分解ax-ay-bx+by=___________6x^2-7x+2=___________3x^2+14xy-5y^2=_________
ax-ay-bx+by=____(ax-ay)-(bx-by)=a(x-y)-b(x-y)=(x-y)(a-b)_______
6x^2-7x+2=__(2x-1)(3x-2)_________
3x^2+14xy-5y^2=_____(3x-y)(x+5y)____

ax-ay-bx+by=_=(a-b)(x-y)_________
6x^2-7x+2=_(2x-1)(3x-2)__________
3x^2+14xy-5y^2=_(3x-y)(x+5y)________

1.a(x-y)-b(x-y)=(x-y)(a-b)
2.(2x-1)(3x-2)
3.(x+5y)(3x-y)

a*(x-y)-b*(x-y)=(a-b)(x-y)
(2x^2-1)(3x^2-2)
(x^2+5y)(3x^2-y)