Question

s=3 and t= 4
4s-t^2

Answer 1

So you just plug in 3 for s and 4 for t.

\[\large \color{red}s = 3,~\color{blue}t=4 \\ \large 4\color{red}s-\color{blue}t^2 \\ \large 4\cdot\color{red}3-\color{blue}4^2\]
Is this clear?

Answer 2

-4

Answer 3

yep