Question

Find the sum of 5x^3-3x^2+5 and -2x^3+6x^2-5

Answer 1

$(5x^3-3x^2+5)+(-2x^3+6x^2-5)\\\\=(5x^3-2x^3)+(-3x^2+6x^2)+(5-5)\\\\=\boxed{3x^3+3x^2}$