Question

if f(3)=x^3+4x^+3x-2,what will be the value of f(x) at x=3?

Answer 1

Step-by-step explanation:

given

f(x)=x^3+4x^2+3x-2

$fx = {x}^{3} + 4 {x}^{2} + 3x - 2 \\ \\ f3 = {3}^{3} + 4(3 ^{2} ) + 3 \times 3 - 2 \\ \\ = 27 + 36 + 9 - 2 \\ \\ = 70$