Enrhifo
2-4\sqrt{13}\approx -12.422205102
Ffactor
2 {(1 - 2 \sqrt{13})} = -12.422205102
Rhannu
Copïo i clipfwrdd
2-12\sqrt{\frac{9+4}{9}}
Lluosi 1 a 9 i gael 9.
2-12\sqrt{\frac{13}{9}}
Adio 9 a 4 i gael 13.
2-12\times \frac{\sqrt{13}}{\sqrt{9}}
Ailysgrifennu ail isradd y rhaniad \sqrt{\frac{13}{9}} fel rhaniad ail israddau \frac{\sqrt{13}}{\sqrt{9}}.
2-12\times \frac{\sqrt{13}}{3}
Cyfrifo ail isradd 9 a chael 3.
2-4\sqrt{13}
Diddymwch y ffactor cyffredin mwyaf 3 yn 12 a 3.
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}