Question

The value of (369)² − (368)² = ?
(a) 1²
(b) 81
(c) 37
(d) 737

Answer 1

(d) 737

${\left(369\right)}^2-{\left(368\right)}^2=\left(369+368\right)\left(369-368\right)$
$$\begin{gathered} =\left(737\times 1\right) \\ =737 \end{gathered}$$