Question

Calcule : (7+√25)/4 =
(7-√25)/4 =
(-6+√100)/2 =
(-6-√100)/2 =
(√36+2.√9)/3 =

Answer 1

$\frac{7 + \sqrt{25}}{4} = \frac{7 + 5}{4} = \frac{12}{4} = 3$
$\frac{7 - \sqrt{25}}{4} = \frac{7 - 5}{4} = \frac{2}{4} = \frac{1}{2} = 0,5$
$\frac{-6 + \sqrt{100}}{2} = \frac{-6 + 10}{2} = \frac{4}{2} = 2$
$\frac{-6 - \sqrt{100}}{2} = \frac{-6 - 10}{2} = \frac{-16}{2} = -8$
$\frac { \sqrt 36 + 2 . \sqrt{9}}{3} = \frac{6 + 2 . 3}{3} = \frac{6 + 6}{3} = \frac{12}{3} = 4$