Issolvi 1^2-9/sqrt{2(1)+3}

$$\frac { 1 ^ { 2 } - 9 } { \sqrt { 2 ( 1 ) + 3 } }$$

Evalwa

$$-\frac{8\sqrt{5}}{5}\approx -3.577708764$$

Passi tas-Soluzzjonijiet

Ikkalkula 1 bil-power ta' 2 u tikseb 1.

$$\frac{1-9}{\sqrt{2\times 1+3}}$$

Naqqas 9 minn 1 biex tikseb -8.

$$\frac{-8}{\sqrt{2\times 1+3}}$$

Immultiplika 2 u 1 biex tikseb 2.

$$\frac{-8}{\sqrt{2+3}}$$

Żid 2 u 3 biex tikseb 5.

$$\frac{-8}{\sqrt{5}}$$

Irrazzjonalizza d-denominatur tal-\frac{-8}{\sqrt{5}} billi timmultiplika in-numeratur u d-denominatur mill-\sqrt{5}.

$$\frac{-8\sqrt{5}}{\left(\sqrt{5}\right)^{2}}$$

Il-kwadrat ta' \sqrt{5} huwa 5.

$$\frac{-8\sqrt{5}}{5}$$