Question

do the expansion of the following



*. (3+6a) (3-6a)


*. (5x+3y)(5x-3y)




give the correct one​

Answer 1

Answer:

(3+6a)×(3-6a)

(3×3-6a×6a). (using identity 3)

=9-36a

second no. can also be done in same way