How to write the expression for (s×t)(2)

Question

s(x)=x+4

t(x)=2x^2

(s×t)(2)

Answer 1

s(x)=x+4

t(x)=2x²

s(2)=(2)+4 = 6

t(2)=2(2)² = 2(4) = 8

s(2) x t(2) = (6)(8) = 48

Answer 2

Jovy, the first step is to understand that (s x t)(2) is defined to be

s(2) x t(2)