Urgently need help with algebra!

Hey guys, can someone simply answer these questions for me? I need them done really soon or else I'm fucked...

Hey, I need help with these math questions. Can someone show me how to solve these? Really urgent at the moment.

Simplify, add, and subtract wherever possible.

1) 14√14 + 5√14

2) √7 + 3√112

Simplify the expression by performing the indicated operations

3) √6 · √3 - 4√50

Simplify

4) √1/4 · √9/5

Simplify the expression

5) √3 (√7 - √5)

I really need help here! Please be kind enough to show the work and leave the answer!

Please help!

 

number one is 19 square root 14.. there are sites online that can simplify these i think

 

Ive been looking for some forever, but thanks. The fact that you got the first answer the same as some other guy on yahoo answers makes me come to the belief that he was right on all of them! Thank you.

*Still open to more answers just in case.