3 square root of 8 + 2 the square root of 16?

Answer 1

3 √8 + 2 √16
6 √2 + 8

Answer 2

if interpreting correctly that would be 3*(square root of 8) + 2*(square root of 16)

thus 3*(8^1/2) + 2*(4),

6(2^1/2) + 8....

you could factor our a 2... but that is about it. A calculator could give you a decimal answer.

Answer 3

It is not clear what your problem is by the way that you have layed it out. Here is what I think that you are wanting to get at:

3 x SQR(8) + 2 x SQR(16) = ?

3 x SQR(2) x SQR(4) + 2 x SQR(4) x SQR(4)

3 x SQR(2) + 2 x 2 x 2

3 x SQR(2) + 2^3

3 x SQR(2) + 8 = 3 x 1.414 + 8 = 16.485

Do you see that the square-root of large even number can be factored and broken down into the square-root of smaller easier to manage numbers?

Answer 4

3sqrt(8) + 2sqrt(16)

= 3sqrt(4 * 2) + 2 * 4

= 3*2sqrt(2) + 8

=6sqrt(2) + 8.

Answer 5

16.485281374238570292810132345258