Question 138376
simplify this?

(-4 + x^2 + 2x^3) – (-6 – x + 3x^3) – (-6y^3 + y^2)

= -4 + x^2 + 2x^3 +6 + x -3x^3 +6y^3 -y^2

= (-4+6) +(x) + (x^2) + 2x^3  -y^2+6y^3

= 2 + x + x^2 + 2x^3 -y^2  6y^3
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Cheers,
Stan H.