00:01
So in this question we're asked to pick a value and they call it in.
00:08
That's step one.
00:09
And then they tell us to find a number whose nth root is whole.
00:20
And the question also talks about roots.
00:23
We know square root.
00:25
There's also a cube root, fourth root, and on and on and on.
00:29
What roots mean is it's asking for numbers that are duplicated and multiplied.
00:34
So, for example, if i wanted the square root of 9, what that's asking is what identical number is multiplied times itself two times, squared means 2? we don't write the 2 here, but there's a little invisible 2 right there.
00:47
What identical number multiplied by itself 2 times gives us 9, and we know that's 3.
00:53
Likewise, if we did, what identical number is multiplied times itself 3 times to get 64, 1, 2, 3 times, same number gives us 64.
01:05
We know that would be 4 and 4 and 4 because 4 times 4 is 16, 16 times 4 is 64.
01:14
So number here indicates to us the number of times that that same value is repeated in order to get our number on the inside.
01:24
So to do this, the number that we pick, we're told it has to be greater than 5.
01:29
So we're going to pick a number greater than 5, and then we need to find a number that whenever we put it under, this, we get a whole number, not a decimal.
01:39
In order to do this, we're going to work backwards, so it's going to seem a little funky, but i know that this number means how many times do i repeat my little answer value here? so we're going to pick a really easy number...