Question

Question about radicals:) expression below.

Answer 1

\[(3-2\sqrt{12})^{2}\]
would this be -39?

Answer 2

no

Answer 3

okay. well wouldnt you square the 3, 2, and 12, so it would be 9-4(12)? which is -39?

Answer 4

no absolutly not:
you have to factor this out:
\[(3-2\sqrt{12})(3-2\sqrt{12})\]

Answer 5

um, okay... then what would you do?

Answer 6

use Foil

Answer 7

9- 6 radical 12- 6 radical 12 + 4 radical 12?

Answer 8

the answer is 54-27sqrt(3), try and work it out

Answer 9

okay, hang on.

Answer 10

i still didnt get it X(