PLEASE HELP, THIS IS DUE TODAY
Which expression is equivalent to 4f(x) - 2g(x), if f(x) = 5x2 + 8x - 1 and g(x) = 3x2 - 9x + 7?
A. 14x^2-x+3
B. 2x^2+17x-8
C. 14x^2+14x+10
D. 14x^2+50x-18