Question

(a+b)² = a²+b²+2ab. Using this identity compute the value of
a.65²
b.103²​

Answer 1

Answer:

a) (60+5)²

= 60² + 2*300 + 25

= 3600 + 600 + 25

= 4225

b) (100+3)²

= 100² + 2*300 + 9

= 10000 + 609

= 10609

Hope this helps ☺️