30-11x^m-30x^2m ,x^2+7/12x-1

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30-11x^m-30x^2m,x^2+7/12x-130-11x^m-30x^2m,x^2+7/12x-130-11x^m-30x^2m,x^2+7/12x-1原式=-(30x^2m+11x^m-3

30-11x^m-30x^2m ,x^2+7/12x-1
30-11x^m-30x^2m ,x^2+7/12x-1

30-11x^m-30x^2m ,x^2+7/12x-1
原式=-(30x^2m+11x^m-30)
=-(6m^x-5)(5m^x+6)
原式=x²+7x/12+49/576-49/576-1
=(x+7/24)²-625/576
=(x+7/24+25/24)(x+7/24-25/24)
=(x+4/3)(x-3/4)