## Calculus with Applications (10th Edition)

$(2x^{2}-6x+11)+(-3x^{2}+7x-2)=-x^{2}+x+9$
$(2x^{2}-6x+11)+(-3x^{2}+7x-2)$ Remove the parentheses and evaluate the sum by combining like terms: $2x^{2}-6x+11-3x^{2}+7x-2=-x^{2}+x+9$