# How do you find the sum or difference of (g^3-2g^2+5g+6)-(g^2+2g)?

${g}^{3} - 2 {g}^{2} + 5 g + 6 - {g}^{2} - 2 g$
${g}^{3} - 3 {g}^{2} + 3 g + 6$