Datrys (sqrt{12}-sqrt{27})divsqrt{3}

$$( \sqrt{ 12 } - \sqrt{ 27 } ) \div \sqrt{ 3 }$$

Enrhifo

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Camau Ateb

Ffactora 12=2^{2}\times 3. Ailysgrifennu ail isradd y lluoswm \sqrt{2^{2}\times 3} fel lluoswm ail israddau \sqrt{2^{2}}\sqrt{3}. Cymryd isradd 2^{2}.

$$\frac{2\sqrt{3}-\sqrt{27}}{\sqrt{3}}$$

Ffactora 27=3^{2}\times 3. Ailysgrifennu ail isradd y lluoswm \sqrt{3^{2}\times 3} fel lluoswm ail israddau \sqrt{3^{2}}\sqrt{3}. Cymryd isradd 3^{2}.

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

Cyfuno 2\sqrt{3} a -3\sqrt{3} i gael -\sqrt{3}.

$$\frac{-\sqrt{3}}{\sqrt{3}}$$

Mae'n rhesymoli enwadur \frac{-\sqrt{3}}{\sqrt{3}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{3}.

$$\frac{-\sqrt{3}\sqrt{3}}{\left(\sqrt{3}\right)^{2}}$$

Sgwâr \sqrt{3} yw 3.

$$\frac{-\sqrt{3}\sqrt{3}}{3}$$

Lluosi \sqrt{3} a \sqrt{3} i gael 3.

$$\frac{-3}{3}$$

Rhannu -3 â 3 i gael -1.

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Ffactor

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