Question

Please Help. Bad at Algebra.
Multiply and then simplify the radical.

Answer 1

This is what I need to simplify.

Answer 2

@Mertsj

Answer 3

Here are the options.

Answer 4

\[5\sqrt{10}\times 3\sqrt{8}=5\times3\times \sqrt{10}\sqrt{8}\]

Answer 5

Take it from there

Answer 6

It might help you to know that 80 = 16 x 5

Answer 7

ok, let me see.

Answer 8

\[15\sqrt{80}\]

Answer 9

?

Answer 10

\[\sqrt{80}=\sqrt{16\times5}=\sqrt{16}\sqrt{5}\]

Answer 11

What is the square root of 16?

Answer 12

ummmm 4

Answer 13

Yes. so finish the problem

Answer 14

so i have \[15\sqrt{80} now I have 4, I still don't know what \to do with the 4.\]

Answer 15

Replace
\[\sqrt{80}\]
With:

Answer 16

Replace
\[\sqrt{80}\]
With:\[4\sqrt{5}\]

Answer 17

ok... then what do?

Answer 18

\[15\sqrt{80}=15(4)(\sqrt{5})\]