Enrhifo
15.72
Ffactor
\frac{3 \cdot 131}{5 ^ {2}} = 15\frac{18}{25} = 15.72
Rhannu
Copïo i clipfwrdd
1.44-4\times 1.7\left(-2.1\right)
Cyfrifo -1.2 i bŵer 2 a chael 1.44.
1.44-6.8\left(-2.1\right)
Lluosi 4 a 1.7 i gael 6.8.
1.44-\left(-14.28\right)
Lluosi 6.8 a -2.1 i gael -14.28.
1.44+14.28
Gwrthwyneb -14.28 yw 14.28.
15.72
Adio 1.44 a 14.28 i gael 15.72.
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}