Enrhifo
112
Ffactor
2^{4}\times 7
Rhannu
Copïo i clipfwrdd
\left(2\times 2\sqrt{7}\right)^{2}
Ffactora 28=2^{2}\times 7. Ailysgrifennu ail isradd y lluoswm \sqrt{2^{2}\times 7} fel lluoswm ail israddau \sqrt{2^{2}}\sqrt{7}. Cymryd isradd 2^{2}.
\left(4\sqrt{7}\right)^{2}
Lluosi 2 a 2 i gael 4.
4^{2}\left(\sqrt{7}\right)^{2}
Ehangu \left(4\sqrt{7}\right)^{2}.
16\left(\sqrt{7}\right)^{2}
Cyfrifo 4 i bŵer 2 a chael 16.
16\times 7
Sgwâr \sqrt{7} yw 7.
112
Lluosi 16 a 7 i gael 112.
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}