Question 632685
{{{4x^4-7x^3-12x^4+6x^3}}}


{{{4x^4-12x^4-7x^3+6x^3}}}


{{{(4x^4-12x^4)+(-7x^3+6x^3)}}}


{{{-8x^4-x^3}}}


So {{{4x^4-7x^3-12x^4+6x^3}}} simplifies to {{{-8x^4-x^3}}}


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