Enrhifo
-2\sqrt{6}-7\approx -11.898979486
Rhannu
Copïo i clipfwrdd
\left(\sqrt{2}\right)^{2}-2\sqrt{2}\sqrt{3}+\left(\sqrt{3}\right)^{2}-2\times 3\sqrt{\frac{1}{3}}\sqrt{12}
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(\sqrt{2}-\sqrt{3}\right)^{2}.
2-2\sqrt{2}\sqrt{3}+\left(\sqrt{3}\right)^{2}-2\times 3\sqrt{\frac{1}{3}}\sqrt{12}
Sgwâr \sqrt{2} yw 2.
2-2\sqrt{6}+\left(\sqrt{3}\right)^{2}-2\times 3\sqrt{\frac{1}{3}}\sqrt{12}
I luosi \sqrt{2} a \sqrt{3}, dylid lluosi'r rhifau dan yr ail isradd.
2-2\sqrt{6}+3-2\times 3\sqrt{\frac{1}{3}}\sqrt{12}
Sgwâr \sqrt{3} yw 3.
5-2\sqrt{6}-2\times 3\sqrt{\frac{1}{3}}\sqrt{12}
Adio 2 a 3 i gael 5.
5-2\sqrt{6}-6\sqrt{\frac{1}{3}}\sqrt{12}
Lluosi 2 a 3 i gael 6.
5-2\sqrt{6}-6\times \frac{\sqrt{1}}{\sqrt{3}}\sqrt{12}
Ailysgrifennu ail isradd y rhaniad \sqrt{\frac{1}{3}} fel rhaniad ail israddau \frac{\sqrt{1}}{\sqrt{3}}.
5-2\sqrt{6}-6\times \frac{1}{\sqrt{3}}\sqrt{12}
Cyfrifo ail isradd 1 a chael 1.
5-2\sqrt{6}-6\times \frac{\sqrt{3}}{\left(\sqrt{3}\right)^{2}}\sqrt{12}
Mae'n rhesymoli enwadur \frac{1}{\sqrt{3}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{3}.
5-2\sqrt{6}-6\times \frac{\sqrt{3}}{3}\sqrt{12}
Sgwâr \sqrt{3} yw 3.
5-2\sqrt{6}-6\times \frac{\sqrt{3}}{3}\times 2\sqrt{3}
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}.
5-2\sqrt{6}-12\times \frac{\sqrt{3}}{3}\sqrt{3}
Lluosi 6 a 2 i gael 12.
5-2\sqrt{6}-4\sqrt{3}\sqrt{3}
Diddymwch y ffactor cyffredin mwyaf 3 yn 12 a 3.
5-2\sqrt{6}-4\times 3
Lluosi \sqrt{3} a \sqrt{3} i gael 3.
5-2\sqrt{6}-12
Lluosi 4 a 3 i gael 12.
-7-2\sqrt{6}
Tynnu 12 o 5 i gael -7.
Enghreifftiau
Hafaliad cwadratig
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometreg
4 \sin \theta \cos \theta = 2 \sin \theta
Hafaliad llinol
y = 3x + 4
Rhifyddeg
699 * 533
Matrics
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Hafaliad ar y pryd
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Gwahaniaethu
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integreiddiad
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}