Enrhifo
\frac{3\left(\sqrt{2}-6\right)}{2}\approx -6.878679656
Ffactor
\frac{3 {(\sqrt{2} - 6)}}{2} = -6.878679656440358
Cwis
Arithmetic
5 problemau tebyg i:
( 1 - \sqrt { 18 } ) ( \sqrt { 2 } + \frac { 1 } { \sqrt { 2 } } )
Rhannu
Copïo i clipfwrdd
\left(1-3\sqrt{2}\right)\left(\sqrt{2}+\frac{1}{\sqrt{2}}\right)
Ffactora 18=3^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{3^{2}\times 2} fel lluoswm ail israddau \sqrt{3^{2}}\sqrt{2}. Cymryd isradd 3^{2}.
\left(1-3\sqrt{2}\right)\left(\sqrt{2}+\frac{\sqrt{2}}{\left(\sqrt{2}\right)^{2}}\right)
Mae'n rhesymoli enwadur \frac{1}{\sqrt{2}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{2}.
\left(1-3\sqrt{2}\right)\left(\sqrt{2}+\frac{\sqrt{2}}{2}\right)
Sgwâr \sqrt{2} yw 2.
\left(1-3\sqrt{2}\right)\times \frac{3}{2}\sqrt{2}
Cyfuno \sqrt{2} a \frac{\sqrt{2}}{2} i gael \frac{3}{2}\sqrt{2}.
\left(\frac{3}{2}-3\sqrt{2}\times \frac{3}{2}\right)\sqrt{2}
Defnyddio’r briodwedd ddosbarthu i luosi 1-3\sqrt{2} â \frac{3}{2}.
\left(\frac{3}{2}+\frac{-3\times 3}{2}\sqrt{2}\right)\sqrt{2}
Mynegwch -3\times \frac{3}{2} fel ffracsiwn unigol.
\left(\frac{3}{2}+\frac{-9}{2}\sqrt{2}\right)\sqrt{2}
Lluosi -3 a 3 i gael -9.
\left(\frac{3}{2}-\frac{9}{2}\sqrt{2}\right)\sqrt{2}
Gellir ailysgrifennu \frac{-9}{2} fel -\frac{9}{2} drwy echdynnu’r arwydd negatif.
\frac{3}{2}\sqrt{2}-\frac{9}{2}\sqrt{2}\sqrt{2}
Defnyddio’r briodwedd ddosbarthu i luosi \frac{3}{2}-\frac{9}{2}\sqrt{2} â \sqrt{2}.
\frac{3}{2}\sqrt{2}-\frac{9}{2}\times 2
Lluosi \sqrt{2} a \sqrt{2} i gael 2.
\frac{3}{2}\sqrt{2}-9
Canslo 2 a 2.
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}