krwilliams1003 krwilliams1003 03-05-2021 Mathematics contestada Given that f(x)=x^2+3x-28f(x)=x 2 +3x−28 and g(x)=x+7g(x)=x+7, find f(x)+g(x)f(x)+g(x) and express the result in standard form.