Question

Maths Assignment
4-a^2

Answer 1

(2-a)^2

(2+a) (2-a)...

Answer 2

Explanation:

Use the identity: a² - b² = (a+ b)(a - b)

4 - a² = 2² - a² {Here a = 2 and b = a}

= (2 +a) (2 - a)