Answer:
D
Step-by-step explanation:
x^2+2x-5-(-3x^2-4x+1)
x^2+2x-5+3x^2+4x-1
4x^2+6x-6
f(x)-g(x)=x²+2x-5+3x²+4x-1 combine like terms
4x²+6x-6
