Question

Which statement is true about the product radical 2(5 + radical 8)?

It is rational and equal to 7.

It is rational and equal to 9.

It is irrational and equal to 4 + radical 10.

It is irrational and equal to 4 + 5 radical 2.

Answer 1

What did you get here?

Answer 2

Were you able to get started at all?

Answer 3

alright, i am confused on how to do this one. So far I have 5 radical 2 + radical 16?

Answer 4

so far, so good

Answer 5

what is the square root of 16?

Answer 6

4

Answer 7

so

\[\Large 5\sqrt{2} + \sqrt{16}\]

\[\Large 5\sqrt{2} + 4\]

\[\Large 4+5\sqrt{2}\]

is your answer

Answer 8

this is irrational since you have a root 2 in there

Answer 9

Thank you @jim_thompson5910