00:01
Hello, here we consider the square root of 20 over 8 and say, is this equal to the square root of 10 over 4? well, looking at square to 10 over 4, to make a denominator of 8, you can multiply that by 2 over 2.
00:19
So we'd have 2 times the square root of 10 over 8, but then, well, this becomes 2 goes into 2 once, 2 goes in the 8, 4 times, that's equal to the square root.
00:30
Well, again, square of 10 over 4, so we have, right? so 2 square to 10 over 8 is going to be equal to 2 square to 10 over 4.
00:42
Is that equal to the square root of 20 over 8? well, no.
00:46
I mean, so square root of 20, we could simplify as writing 20 as, let's see, 4 times 5.
00:53
So if we write square root of 4 times 5, we could write that as square root of 4 times 5...