Question

103^2 = (100 + ⋯ )^2 = 100^2 + ⋯ + ⋯
I need help Filling in the blank spaces, Urgent

Answer 1

Explanation:

Notes;

(a+b)² = (a+b) × (a+b)

= a(a+b) × b(a+b)

= a² +ab + ba + b²

= a² + b² + 2ab

similarly , (a-b) = a² + b² - 2ab

so , The question :-

103² = (100 + 3)²

= 100² + 3² + (2×100×3)

= 10000 + 9 + 600

= 10609