Question

Let f(x)=x^2+5x, g(x)=6-2x, h(x)=2/x-3; find the following value.
f(6)-4= ?

Answer 1

is it 38??

Answer 2

Nope :(
66
62
14
or
2

Answer 3

We have
\[\large f(x)=x^2+5x\]
We have to find
\[\large f(6)-4\]
\[f(6)=f(x=6)\]
so
\[f(6)=6^2+5\times 6=36+30=66\]
so
\[f(6)-4=66-4=62\]

Answer 4

Thanks so much ash2326!