Question

Expand the following using identity (a-3)^2​

Answer 1

(a-3)²

a²+3²-(2×a×3)

a²+9-6a

Answer 2

Answer:

a² + 9 - 6a

Step-by-step explanation:

we know that,

(a-b)² = a² + b² - 2ab

hence,

(a-3)² = a² +3² -2*3*a

⇒ a² + 9 - 6a