Lahenda 438^2-(20sqrt{7})^2-sqrt{3}43

$$438 ^ { 2 } - ( 20 \sqrt { 7 } ) ^ { 2 } - \sqrt { 3 } 43$$

Arvuta

$$189044-43\sqrt{3}\approx 188969,521815275$$

Lahenduse etapid

Arvutage 2 aste 438 ja leidke 191844.

$$191844-\left(20\sqrt{7}\right)^{2}-43\sqrt{3}$$

Laiendage \left(20\sqrt{7}\right)^{2}.

$$191844-20^{2}\left(\sqrt{7}\right)^{2}-43\sqrt{3}$$

Arvutage 2 aste 20 ja leidke 400.

$$191844-400\left(\sqrt{7}\right)^{2}-43\sqrt{3}$$

\sqrt{7} ruut on 7.

$$191844-400\times 7-43\sqrt{3}$$

Korrutage 400 ja 7, et leida 2800.

$$191844-2800-43\sqrt{3}$$

Lahutage 2800 väärtusest 191844, et leida 189044.

$$189044-43\sqrt{3}$$