Question

Can someone help me ?

Answer 1

Recall\[(a+b)^2=a^2+2ab+b^2\]So, in this case, \[a=2\sqrt5~and~b=3\sqrt7\]That means\[(2\sqrt5+3\sqrt7)^2=20+12\sqrt{35}+63=83+12\sqrt{35}\]

Answer 2

thats the answer ??

Answer 3

im horrible at math im sorry

Answer 4

Did you have something else in mind?

Answer 5

my mind is blank at the moment

Answer 6

Not to say I don't make mistakes, but I think that is pretty close to the answer. Do math every day.

Answer 7

ur right :)

Answer 8

smart . but thank you