Respuesta :

-1 i think!!! thats what i got but i could be wrong 
Try x = 2.

f(x) = 2x^3 + 3x + 5

f(2) = 2(2)^2 + 3(2) + 5

f(2) = 2(4) + 6 + 5

f(2) = 8 + 6 + 5

f(2) = 19

Answer: x = 2