因式分解:z^2(x-y)-4(x-y)-3z(y-x)
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因式分解:z^2(x-y)-4(x-y)-3z(y-x)
因式分解:z^2(x-y)-4(x-y)-3z(y-x)
因式分解:z^2(x-y)-4(x-y)-3z(y-x)
z^2(x-y)-4(x-y)-3z(y-x)
=z^2(x-y)+3z(x-y)-4(x-y)
=(x-y)(z^2+3z-4)
=(x-y)(z+4)(z-1)
只能先把 -3z(y-x) 变成 3z(x-y) 然后提取(x-y)
因式分解:z^2(x-y)-4(x-y)-3z(y-x)
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