Question

PLEASE SOMEONE FIND THE VALUE IN STEPS

Answer 1

(18.5 +6.5) ( 18.5-6.5 )
--------------------------------
( 18.5 +6.5)

= 18.5 -6.5
= 12.5

Answer 2

Solution,

We use the formula :

a² - b² = (a + b) (a - b)

Now,

$\frac{( {18.5)}^{2} - {(6.5)}^{2} }{18.5 + 6.5} \\ \\ = \frac{(18.5 + 6.5)(18.5 -6.5) }{(18.5 + 6.5)} \\ \\ = 18.5 - 6.5 \\ \\ = \mathbf{12 \: \: \: \: \: \: \: \: Ans.}$