Question

Factorise:-(By using identity)
(a+2b)² - a²​

Answer 1

Answer:

4b ( a + b )

Step-by-step explanation:

Answer 2

$= (a + 2b) ^{2} - {a}^{2}$

$= (a + 2b) ^{2} - ( {a})^{2}$

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

$= (2a + 2b)(2b)$

$= 2(a + b)(2b)$

$= 2 \times 2b(a + b)$

$= 4b(a + b)$