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1. How do you get 5√33 when you simplify √15 x √55???
2. (Original post by Chelsea12345)
How do you get 5√33 when you simplify √15 x √55???
Use your surd rules then proceed to simplify inside the root. You should be looking to factor out a square number which square roots nicely.

Otherwise, break down the roots into roots of primes then simplify at the end.
3. (Original post by Chelsea12345)
How do you get 5√33 when you simplify √15 x √55???
you first simplify the
√15 x √55
soo what 15 goes in to? 5 * 3
do the same with 55
then you should end up with two 5s and something
the 5 goes outside and the number you get will go inside
try it
4. √15 x √55 = √825

√825 = √33 x 25

√25 = 5

You put that outside the sqrt symbol since it has been squared: 5√33

Since 33 cannot be factored and squared any more, this is the simplest form.
5. There's 155 inside, then 5 goes outside to the front, then we bring the 11 over to the other side. Finally, we pull out the 10. What's left?
6. Thankyou all of you! i get it now

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