Question

factorise 36 - (a+2b)²​

Answer 1

Answer:

The answer is $(6+a+2b)(6-a-2b)$

Step-by-step explanation:

   $36-(a+2b)^2$

Write in the form of $a^2-b^2$

 $=6^2-(a+2b)^2$

Now use $(a^2-b^2)=(a-b)(a+b)$ identity

$=(6+a+2b)(6-(a+2b))\\=(6+a+2b)(6-a-2b)$

Answer 2

Answer:

( 6 + a + 2b ) (6 - a - 2b )

Step-by-step explanation:

Its 6² - ( a + 2b )²

In the form of  a² + b² = (a+b)(a-b)

Here a = 6

be = a + 2b