利用提公因式法因式分解(要详细步骤)x(x^2-xy)-(4x^2-4xy)

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利用提公因式法因式分解(要详细步骤)x(x^2-xy)-(4x^2-4xy)
利用提公因式法因式分解(要详细步骤)
x(x^2-xy)-(4x^2-4xy)

利用提公因式法因式分解(要详细步骤)x(x^2-xy)-(4x^2-4xy)
x(x^2-xy)-(4x^2-4xy)
=x(x^2-xy)-4(x^2-xy)
=(x^2-xy)(x-4)
=x(x-y)(x-4)

x(x^2-xy)-(4x^2-4xy)
=X^3-X^2Y-4X^2-4XY
=X(X^2-XY-4X-4Y)
=X[(X^2-4X)-(XY+4Y)]
=X[X(X-4)-Y(X+4)]

=x(x²-xy)-4(x²-xy)
=(x²-xy)(x-4)
=x(x-y)(x-4)
看不明白可以追问