Question

(a+2b)(a-2b) expand by algebraic identity​

Answer 1

Answer:

a² - 4b²

Step-by-step explanation:

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

{Using identity : (a + b)(a - b) = a² - b²}

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

(a)² - (2b)²

a² - 4b²