4(x²+4x-12)/6(x²+5x-6)
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4(x²+4x-12)/6(x²+5x-6)
4(x²+4x-12)/6(x²+5x-6)
4(x²+4x-12)/6(x²+5x-6)
4(x²+4x-12)/6(x²+5x-6)
=4(x+6)(x-2)/6(x+6)(x-1)
=2(x-2)/3(x-1)
原式=[4(x+6)(x-2)]/[6(x+6)(x-1)]
=[2(x-2)]/[3(x-1)]
=4(x-2)(x+6)/6(x-1)(x+5)
=2(x-2)(x+6)/3(x-1)(x+6)
=2(x-2)/3(x-1)