Question

http://prntscr.com/azz1ce Help please? c;

Answer 1

@John_ES Please help?

Answer 2

What is your answer?

Answer 3

Do you know how to solve it?

Answer 4

I don't know exactly if you gave me the answer before. This should be the way to obtain it,
Let x be unknown distance we will add to each side, then the new area is,
\[255=(12+x)(14+x)\]Solving this you will find x=3, so the answer is (c).

Answer 5

Thanks so much!