Question

-7x+y 3+7x^3 +6x−3y^3−2x^3 +3x

Answer 1

`\circ\sf\:-7x+y^3+7x^3+6x-3y^3-2x^3+3x`

`\circ\sf\:(-7x+6x+3x)+(y^3-3y^3)+(7x^3-2x^3)`

`\circ\sf\:(-7x+9x)+(-2y^3)+(5x^3)`

`\circ\sf\:2x-2y^3+5x^3`

`\circ\:\underline{\boxed{\bf{\blue{x(2-5x^2)-2y^3}}}}`