00:04
This question is asking us to evaluate an expression for given values.
00:08
So we start with that expression, and it says three times s minus t squared.
00:16
And they've told us in the instructions that s is equal to four and t is equal to one.
00:23
So we're going to take out the s and the t, and we're going to replace them with four and one.
00:28
And we do that, our new expression sets three times four, one.
00:36
Minus one, close parentheses, squared.
00:42
So based on order of operations or pemdos, we know that parentheses comes first.
00:48
So we're going to deal with this 4 minus one first.
00:51
So 4 minus 1 is 3...