Simplify (x – 3y)2 – (x + 3y)2
-
A.
2(x + 3y) -
B.
(2x – 3y) -
C.
-12xy -
D.
6xy
Correct Answer: Option C
Explanation
(x – 3y)2 – (x + 3y)2 = [(x – 3y) – (x + 3y)]
[(x + 3y + x + 3y)] = [-6y] [2x]
= -12xy
(x – 3y)2 – (x + 3y)2 = [(x – 3y) – (x + 3y)]
[(x + 3y + x + 3y)] = [-6y] [2x]
= -12xy