Question

16a2-225b2...factorise

Answer 1

Here is your answer buddy,

The question is - 16a^2 -225b^2 =0

The answer - 16a^2 - 225b^2 =0
=> (4a)^2 -(15b) ^2 =0
=> (4a-15b) (4a+15b) =0

Now either,
(4a-15b) =0
a = 15b/4

Or,
(4a+15b) =0
a = -15b/4

Hope this helps you.
Be Brainly.