Issolvi frac{-12-sqrt{12^2-4-02*7}}{2-02}

$$\frac{ -12- \sqrt{ { 12 }^{ 2 } -4-02 \cdot 7 } }{ 2-02 }$$

Evalwa

$$-\sqrt{35}-6\approx -11.916079783$$

Passi tas-Soluzzjonijiet

Ikkalkula 12 bil-power ta' 2 u tikseb 144.

$$\frac{-12-\sqrt{144-4-0\times 2\times 7}}{2-0\times 2}$$

Naqqas 4 minn 144 biex tikseb 140.

$$\frac{-12-\sqrt{140-0\times 2\times 7}}{2-0\times 2}$$

Immultiplika 0 u 2 biex tikseb 0.

$$\frac{-12-\sqrt{140-0\times 7}}{2-0\times 2}$$

Immultiplika 0 u 7 biex tikseb 0.

$$\frac{-12-\sqrt{140-0}}{2-0\times 2}$$

Naqqas 0 minn 140 biex tikseb 140.

$$\frac{-12-\sqrt{140}}{2-0\times 2}$$

Iffattura 140=2^{2}\times 35. Erġa' ikteb l-għerq kwadrat tal-prodott \sqrt{2^{2}\times 35} bħala l-prodott tal-għeruq kwadrati \sqrt{2^{2}}\sqrt{35}. Ħu l-għerq kwadrat ta' 2^{2}.

$$\frac{-12-2\sqrt{35}}{2-0\times 2}$$

Immultiplika 0 u 2 biex tikseb 0.

$$\frac{-12-2\sqrt{35}}{2-0}$$

Naqqas 0 minn 2 biex tikseb 2.

$$\frac{-12-2\sqrt{35}}{2}$$

Iddividi kull terminu ta' -12-2\sqrt{35} b'2 biex tikseb-6-\sqrt{35}.

$$-6-\sqrt{35}$$

Fattur

$$-\sqrt{35}-6$$