Question

9^2+5^2

Answer 1

14^2

Answer 2

=?

Answer 3

Add like terms.

Answer 4

81+25=106

Answer 5

Is it a binomial?

Answer 6

81+25=106

Answer 7

106

Answer 8

Method 2:
\(\Large a^2 + b^2 = a^2 + 2ab + b^2 - 2ab = (a + b)^2 - 2ab\)
\(\Large \Rightarrow (9+5)^2-2\times 9\times 5 =106\)

Answer 9

This is not a binomial. It is simply 9^2+5^2 which is written as: