00:01
So here we ask to solve for p of negative 3 and evaluate p of c is equal to 2.
00:07
With this function that we're given, p of c is equal to c squared plus c.
00:12
So to solve this, the first thing you do is substitute the c values for negative 3.
00:18
You would get negative 3 squared plus negative 3, not plus 3, plus negative 3, plus negative 3.
00:28
So p of negative 3 would be equal to 9 minus 3 since the negative would override the plus sign.
00:41
So we would get p, p of negative 3 is equal to 6.
00:51
So that would be the answer.
00:55
So for the next part where we have p of c, is equal to 2, we would substitute p of c is equal to 2.
01:05
So we would substitute 2 over here, we get c squared plus c.
01:09
Since we have two variables, we would have to isolate the equation to have so that one side is equal to 0.
01:18
So we would subtract negative 2 from both sides, positive 2 from both sides, and we get c squared plus c minus 2 is equal to 0.
01:30
So now we can factor this.
01:32
And we know that since there's an invisible one here, we had to find two numbers that when multiplied, give us negative 2...