Let f(x) = x² and g(x) = 2x – 1 be two real functions

Matching exercise

    
Match the items on the right to the items on the left.
(f + g) (x)
(f –g) (x)
(fg) (x)
(f/g) (x)
x²+2x-1
x²-2x+1
2x³+x²
(x²)⁄(2x−1)