Question

Find the square of following numbers without actual division 39 and 103

Answer 1

Answer:

Step-by-step explanation:

(39)^2 = (30+9)(30+9)

= (30)^2 + (2×30×9) + (9)^2

=900 + 540 + 81

=1521

(103)^2 = (100+3)(100+3)

= (100)^2 + (2×100×3) + (3)^2

= 10000 + 600 + 9

= 10609