Question

Evaluate using identity(503)^2​

Answer 1

Answer:

2503009

Step-by-step explanation:

(503)²

= (500 + 3)²

= (500)² + 3² + 2×500×3

= 250000 + 9 + 3000

= 2503009

Answer 2

Answer:

253009

Step-by-step explanation:

Identity used here - $(a+b)^2 = a^2+2ab+b^2$

$(503)^{2}\\= (500+3)^2\\= (500)^2+2(500)(3)+(3)^2\\= 250000+3000+9\\= 253009$