gregedwardferia gregedwardferia 23-01-2018 Mathematics contestada If f(x) = 2x^2 + 1 and g(x) = x^2 -7, find (f-g)(x) A. 3x^2 - 6 B. 3x^2 + 8 C. x^2 - 6 D. x^2 + 8