Question

Simplify the radical expression by rationalizing the denominator. 5/√30

Answer 1

\[\frac{ 5 }{ \sqrt{30} }\]

Answer 2

multiply top and bottom by \(\sqrt{30}\)

Answer 3

then cancel the 5

Answer 4

\[\frac{ 5 }{ \sqrt{30} }*\frac{ \sqrt{30} }{ 30 }=\frac{ 5\sqrt{30} }{ 30 }=\frac{ \sqrt{30} }{ 6 }\]

Answer 5

Thank you!

Answer 6

Yup :P

Answer 7

Could you help me with one more?

Answer 8

Solve the equation. Identify any extraneous solutions.

√a = -2

Answer 9

we t solve for this you would square both sides..\[(\sqrt{a})^2=(-2)^2\]
a=4

Answer 10

\[\sqrt{4}=\pm2\]

Answer 11

Thanks!

Answer 12

You're welcome :)