Issolvi 2sqrt{12}*frac{sqrt{7}}{4}

$$2 \sqrt { 12 } \times \frac { \sqrt { 7 } } { 4 }$$

Evalwa

$$\sqrt{21}\approx 4.582575695$$

Passi tas-Soluzzjonijiet

Iffattura 12=2^{2}\times 3. Erġa' ikteb l-għerq kwadrat tal-prodott \sqrt{2^{2}\times 3} bħala l-prodott tal-għeruq kwadrati \sqrt{2^{2}}\sqrt{3}. Ħu l-għerq kwadrat ta' 2^{2}.

$$2\times 2\sqrt{3}\times \frac{\sqrt{7}}{4}$$

Immultiplika 2 u 2 biex tikseb 4.

$$4\sqrt{3}\times \frac{\sqrt{7}}{4}$$

Annulla 4 u 4.

$$\sqrt{7}\sqrt{3}$$

Biex timmultiplika \sqrt{7} u \sqrt{3}, immultiplika n-numri taħt l-għerq kwadrat.

$$\sqrt{21}$$