Question

3-27(a-b)^2 factorise it​

Answer 1

Answer:

3×{(1-a+b)(1+a-b)} @@@@@@@@

Answer 2

Answer:

3 (1-3a+3b)(1+3a-3b)

Step-by-step explanation:

3-27 (a-b)^2

=3 (1-9 (a-b)^2)

=3 (1-3^2 (a-b)^2)

=3 (1^2-(3a-3b)^2)

=3 (1-3a+3b)(1+3a-3b) (a^2-b^2 identity )