Question

If f(x)=2x²-1 and g(x)=7x+1 find fg​

Answer 1

fg=2x²+7x i think its true f

Answer 2

Therefore, we have

(ƒ - g)(x)

= f(x) = g(x)

(2x² + 1)(x² – 7)

= 2x² +1-x² +7 =

x² +8.

Thus, the required value is

(f - g)(x) = x² + 8.