x^-xy+4x-4y=(x^-xy)+(4x-4y)=x(x-y)+4(x-y)=(x-y)(x+4),仿照上述分解因式的方法,请分解ad-ac-bc+bd

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x^-xy+4x-4y=(x^-xy)+(4x-4y)=x(x-y)+4(x-y)=(x-y)(x+4),仿照上述分解因式的方法,请分解ad-ac-bc+bd

x^-xy+4x-4y=(x^-xy)+(4x-4y)=x(x-y)+4(x-y)=(x-y)(x+4),仿照上述分解因式的方法,请分解ad-ac-bc+bd
x^-xy+4x-4y=(x^-xy)+(4x-4y)=x(x-y)+4(x-y)=(x-y)(x+4),仿照上述分解因式的方法,请分解ad-ac-bc+bd

x^-xy+4x-4y=(x^-xy)+(4x-4y)=x(x-y)+4(x-y)=(x-y)(x+4),仿照上述分解因式的方法,请分解ad-ac-bc+bd
ad-ac-bc+bd
=(ad -ac)+ (bd -bc)
= a (d-c) + b(d-c)
=(a+b)(d-c)