Sorry... but does anyone know what -2x^3+x+7x^3+10 is with work showing if it's ok with you
-2x^3+x+7x^3+10
\( -2x^3+x+7x^3+10\\ = -2x^3+7x^3\quad +x+10\\ =5x^3\quad +x+10\\\)
