Question

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Answer 1

\(1,\\ a,=-2x^4y^3+4x^3y^4-10x^2y^5\\ b,=-2x^4+6x^3+2x^2-2x\\ c,=6x^5-3x^3+15x^2\)

Answer 2

\(2,\\ a,=5x^2-3x^2-6x=2x^2-6x\\ b,=3x^2-15x-5x^2-35x=-2x^2-50x\\ c,=6x^4y-3x^2y^2-4x^4y+2x^2y^2=2x^4y-x^2y^2\\ e,=4x^4-16x^3+4x^4-2x^3+14x^2=8x^4-18x^3+18x^2\\ f,=25x-12x+4+35x-14x^3=-14x^3+48x+4\)