Question

Perform the following multiplication. The answer should be in simplified form for radical expressions.

Answer 1

\[(4+\sqrt{7})^2\]
@charliealbert

Answer 2

I will do it, but I want you trying to do it.
Remember this:
\[(a+b)^{2}=a^{2}+2ab+b^{2}\]. And tell me what you got

Answer 3

\[16+8\sqrt{7}+7\]?

Answer 4

Yes

Answer 5

16+8+7?

Answer 6

Or:
\[23+8\sqrt{7}\]

Answer 7

oh, so just add the 16 & 7, got it! thanks!

Answer 8

You are welcome

Answer 9

Next one?

Answer 10

Sorry, but I'm a little bit sleepy and tomorrow I have a presentation.

Answer 11

Oh, ok...well thank you so much, goodnight ! :)

Answer 12

You too