queenwendis55 queenwendis55 14-04-2021 Mathematics contestada Let f(x)=-3x+7 and g(x)=2x^2-8 Find f(x)+g(x)Choose the best answerA)-2x^2 - 3x +15B) -x^2 - 1C) 5x^2 +15D) 2x^2 - 3x - 1