Question

Please answer this question.✌✌​

Answer 1

Answer:

hey mate

here you go

should be correct

Answer 2

Answer:

$9 (2a - b)^2-4 (2a-b) - 13 = (18a-9b- 13) (2a +b - 1)$

Step-by-step explanation:

Given Problem:

9(2a-b)2 -4(2a-b) -13

Solution:

To Do:

We have to factorize:

9(2a-b)2 -4(2a-b) -13

---------------

$=>Let \ 2a - b = x$

$=> 9x^2 -4x -13$

Splitting the middle term,

$=>9x^2 - 13x+9x- 13$

$=>x(9x - 13) +1 (9x-13)$

$=> (9x - 13) (x+1)$

$Substituting \ x = 2a - b$

$=> [ 9 \ (2a - b) - 13] (2a - b+1)$

$=>(18a - 9b - 13) (2a - b +1)$

∴$9 (2a - b)^2- 4 (2a-b) - 13 = (18a-9b- 13) (2a +b - 1)$