Factoring "36 -(x + 5y)^2"(multiple choice)?

Question

I need to factor 36 -(x + 5y)^2 (^2 means to the power of two).
Can you include the work? I want to learn this not just answer it.

A. (6 + x + y)(6 - x - y)

B. (6 + x - 5y)(6 - x - 5y)

C. (6 + 5xy)(6 - 5xy)

D. (6 + x + 5y)(6 - x - 5y)

Answer 1

D is the correct answer
36-(x+5y)^2
=(6)^2-(x+5y)^2 [here the expression has been arranged in the form of a^2-b^2]
=(6+x+5y)(6-x-5y)[ we have followed hee the factorisation of identity a^2-b^2=(a+b)(a-b)]

Answer 2

Remember that a^2 - b^2 = (a+b)(a-b)

36 - (x + 5y)^2
= 6^2 - (x + 5y)^2
= (6 + x + 5y)(6 - (x + 5y))
= (6 + x + 5y)(6 - x - 5y)

D

Answer 3

[ 6 - (x + 5y)].[ 6 + (x + 5y)]
[ 6 + x + 5y ].[6 - x - 5y ]
ANSWER D