分解因式ax²+2ax-3a=
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分解因式ax²+2ax-3a=
ax²+2ax-3a
=a(x²+2x-3)
=a(x+3)(x-1)
a(x2+2x-3)=a(x+3)(x-1)
=a（x²+2x-3)
=a(x+3)(x-1)
a(x-1)(x+3)
分解因式ax²+2ax-3a=
ax²+2ax-3a
=a(x²+2x-3)
=a(x+3)(x-1)
a(x2+2x-3)=a(x+3)(x-1)
=a（x²+2x-3)
=a(x+3)(x-1)
a(x-1)(x+3)