Question

If f(x) = 2x2 + 1 and g(x) = x2 – 7, find (f – g)(x).

Answer 1

f(x)=(2x²+1)-(x²-7) or f(x)=2x²+1-x²+7

Combine like terms/Distribute the subtraction(negative) sign

f(x)=(x²+8)