Question

K(x) = x2 + 5 + 2x; Find k(4)

Answer 1

the given expression is,

k(x) = x^2 + 5 + 2x

put x = 4

k(4) = 4^2 + 5 + 2(4)

= 16 + 5 + 8

= 29

thus, the answer is 29