Simplify the following expression. (17.46^2-4.46^2)/(17.46+4.46)

$\frac{17.46^2-4.46^2}{17.46+4.46}$

We know,

a² - b² = (a + b) (a – b)

$\frac{17.46^2-4.46^2}{17.46+4.46}$ = $\frac{(17.46+4.46)(17.46-4.46)}{17.46+4.46}$

= (17.46-4.46) = 13