Question

If f(x) = 3x² + 1 and g(x) = 1-x, what is the value of (f-g)(2)

Answer 1

f-g= 3x²+1-(1-x)

3x²+1-1+x

3x²+x=0

x(3x+1)=O

x=0, 3x+1=0

So, x=0 or -1/3