# How do you add ( x^3+2x-1)+(3x^2+4)?

$\left({x}^{3} + 2 x - 1\right) + \left(3 {x}^{2} + 4\right)$
${x}^{3}$ + $3 {x}^{2}$ + $2 x$ -1 + 4
${x}^{3}$ + $3 {x}^{2}$ + $2 x$ + 3