Can someone help ?

Sure. What kind of help do you need?

i don't know how to attach the pic to this ?

You can't. Sorry.

umm well let me see . .

the question is : Simplify (2 square root of 5 + 3 square root of 7)^2

do you get it ???

Use this as a guide

(a + b)^2
a^2 + 2ab + b^2

but i don't know how to solve it ?

Of course! I'm here to help. Please go ahead and ask your question, and I'll do my best to assist you.