Question

12(a+3b) - 8(a+3b)^2 factorise​

Answer 1

Step-by-step explanation:

let, (a+3b) be x

So,

12x-8x^2

=4x (3-2x)

Now, putting the value of x

=4 (a+3b){3-2 (a+3b)}

=(4a+12b)(3-2a-6b)