Question

How do I solve √8 - 15√12 ?

Answer 1

√8 - 15√12
is the same as
\[\sqrt{2^{2}*2} - 15\sqrt{2^2*3}\]

Answer 2

then bring out the squares
\[2\sqrt{2}-30\sqrt{3}\]

Answer 3

>__< I'm sorry I meant " √8 - 15√2 ?"

Answer 4

okay well that is easier

\[\sqrt{2^{2}*2} - 15\sqrt{2}\]

reduces to
\[2\sqrt{2} - 15\sqrt{2}\]

now subtract the coefficients

Answer 5

Aah. So then it'd be a negative right.
-13√2?

Answer 6

correct

Answer 7

Ah. Thanks. :)