Question

Sendo f(x)= 2x²+5 determine 
f(x) √3

Answer 1

f(x) = 2x² + 5  f(√3 )
f(√3 ) = 2 . (√3 )² + 5
f(√3 ) = 2 . 3 + 5
f√3 ) = 6 + 5
f(√3 ) = 11