Question

If `m=5` and `n=10`, what is the value of `m^2 + 2mn + 1`?

Answer 1

`126`

Explanation:

Substitute every `m` with `5` and every `n` with `10` to obtain

`m^2+2mn+1=5^2+2(5)(10)+1`

`=25+100+1`

`=126`