Question

evaluate (206)² using (a+b)​

Answer 1

Answer:

42436

Step-by-step explanation:

(200+6)² = (200)² + (6)² + 2*200*6

= 40000 + 36 + 2400

= 42436

using (a+b)² = a² + b² + 2ab

Hope, it helps u.....

Answer 2

Answer:

42436

Step-by-step explanation:

(206)^2

={(200+6)^2}+ (2×6×200)

=(200^2) + (6^2)+(2×6×200)

=40000+36+2400

=42436

Using a2+b2+2ab