Question

factorise the folloing
1 - 9b^2​

Answer 1

Answer:

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

Step-by-step explanation:

1^2 = 1

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

According to a^2 - b^2 = (a-b)(a+b),

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

So, the answer is:

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