Question

Simplify (X+3y)square2-(x-3y)square2

Answer 1

( x + 3y )^2 - ( x - 3y )^2


use identity :- ( a + b)^2 = a ^2 + b^2 + 2ab and

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


= x^2 + 9y^2 + 6xy - x^2 - 9y^2 + 6xy


= 12 xy

Answer 2

❤❤Here is your answer ✌ ✌

$\huge\underline {\red {\bold {Answer}}}$


$\huge\underline {\green {\bold {12xy}}}$