Question

What is the value of $3 {x}^{4}$when x = 2?

Answer 1

48

1) Let's evaluate, that expression for x=2. Plugging into that x=2, we'll have:

$\begin{gathered} 3x^4 \\ 3(2)^4 \\ 3\cdot16 \\ 48 \end{gathered}$

2) So that expression returns 48 when x=2,