Question

Radical question.

Answer 1

@DanJS

Answer 2

k

Answer 3

\[\frac{ 60\sqrt{8} }{ \sqrt{2} }\]

Answer 4

Anytime you have a root by itself in the denominator, multiply the fraction by that root over itself.. like
\[\frac{ a }{ \sqrt{b} } = \frac{ a \sqrt{b} }{ \sqrt{b}\sqrt{b} } = \frac{ a \sqrt{b} }{ b }\]

Answer 5

\[\frac{ 60\sqrt{8} }{ \sqrt{2} } * \frac{ \sqrt{2} }{ \sqrt{2} } = \frac{ 60\sqrt{8}\sqrt{2} }{ 2 }\]

Answer 6

\[\frac{ 60\sqrt{8 * 2} }{ 2 } = \frac{ 60\sqrt{16} }{ 2 } = \frac{ 60 * 4 }{ 2 }\]

Answer 7

Okay! That was easy! I understand everything except for why
\[\sqrt{2}*\sqrt{2}\]
equals 2?

Answer 8

so the final answer is 120?

Answer 9

yeah

remember this :

Answer 10

\[\sqrt{x}\sqrt{x} = x ^{1/2}*x ^{1/2} = x ^{\frac{ 1 }{ 2 }+\frac{ 1 }{ 2 }} = x^1 = x\]
so
\[\sqrt{x}\sqrt{x} = x\]

Answer 11

oh yeah! I forgot!

Answer 12

Can you do one or two more problems on a new thread? Only if it's okay with you.

Answer 13

sure, i think you are getting it

Answer 14

put up the one that looks the hardest

Answer 15

this time I'll walk through it and tell me if a make a mistake.

Answer 16

okay

Answer 17

k