X3的次方加Y的3次方怎么因式分解
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责编:小OO
时间:2024-10-04 18:02:29
X3的次方加Y的3次方怎么因式分解
x3+y3=x3+x2y-x2y-xy2+xy2+y3=x2(x+y)-xy(x+y)+y2(x+y)=(x+y)(x2-xy+y2)
导读 x3+y3=x3+x2y-x2y-xy2+xy2+y3=x2(x+y)-xy(x+y)+y2(x+y)=(x+y)(x2-xy+y2)

x3+y3=x3+x2y-x2y-xy2+xy2+y3=x2(x+y)-xy(x+y)+y2(x+y)=(x+y)(x2-xy+y2)
X3的次方加Y的3次方怎么因式分解
x3+y3=x3+x2y-x2y-xy2+xy2+y3=x2(x+y)-xy(x+y)+y2(x+y)=(x+y)(x2-xy+y2)