00:01
So we're given these two things.
00:02
We're given the square root of x minus 8 is equal to 7, and we're given the square root of x equals 15.
00:08
And what we're asked to do is we're asked to determine whether these two equations are equivalent.
00:21
And so how do we do that? they are like two equations.
00:24
Well, two equations are equivalent if they, if both of those, if both of them have the same solutions.
00:32
In other words, when we solve this for x and we solve this for x, if we get the same x value, then these equations are equivalent.
00:40
And so let's solve the first one.
00:41
And so when we solve the first one, we can add eight to both sides, then we get squared of x is equal to 15, and then we can square both sides, and we get x is equal to 15 squared, which i believe is 225...