3ax²-3ay² 因式分解
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3ax²-3ay² 因式分解
3a(x+y)(x—y)
3a(x2-y2)
3a(x+y)(x-y)
3a(x+y)(x-y)
=3x(x平方-y平方)
=3x(x+y)(x-y)
3ax²-3ay² 因式分解
3a(x+y)(x—y)
3a(x2-y2)
3a(x+y)(x-y)
3a(x+y)(x-y)
=3x(x平方-y平方)
=3x(x+y)(x-y)