Question

Find the following products (a -3b ) (a + 3b ) (a 2+ 9 b2

Answer 1

Answer:

Hi. Hope you are fine..  You can solve this using the a²-b²=(a-b)(a+b)

Step-by-step explanation:

given,

(a -3b ) (a + 3b ) (a 2+ 9 b2 )

(a²-9b²)(a²+9b²)          [  using the formula a²-b²=(a-b)(a+b)]

now, again using the formula we can write,

a^4 - 81b^4

this is the answer.

Hope you like it..  Please mark as brainliest.

Answer 2

Step-by-step explanation:

first solve by binomial multiplication. then take LCM