Question

(√7 - √2)2

Answer 1

\[(\sqrt{7}-\sqrt{2})^2=\sqrt{7}^2+\sqrt{2}^2-2\sqrt{7}\sqrt{2}=7+2-2\sqrt{14}=9-2\sqrt{?}\]

Answer 2

use the formula (a+b)^2= a^2+ 2.a.b+ b^2

Answer 3

so it would just be 7?

Answer 4

\[\sqrt{14}\]

Answer 5

this dude names joshdavoll will not leave me alone talkin about this site is what this is for

Answer 6

\[9-2\sqrt{14}\]

Answer 7

because you keep asking the same questions, @brooke17. please read http://openstudy.com/code-of-conduct. We are not here to help you cheat on your homework.

Answer 8

blah blahh stop bein so worried bout me then

Answer 9

and thankyou to the person that helped

Answer 10

there's no need to be rude. I'm just trying to help you. Ultimately it will be worse for you if you if you don't understand the concepts.

Answer 11

no it want cuase im not in school!

Answer 12

even more reason to learn the concepts, if no one is going to teach you them at school :)