Enrhifo
9
Ffactor
3^{2}
Rhannu
Copïo i clipfwrdd
\left(\sqrt{3}\right)^{2}+2\sqrt{3}+1-\left(\sqrt{2}+1\right)\left(\sqrt{2}-1\right)+2\left(3-\sqrt{3}\right)
Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(\sqrt{3}+1\right)^{2}.
3+2\sqrt{3}+1-\left(\sqrt{2}+1\right)\left(\sqrt{2}-1\right)+2\left(3-\sqrt{3}\right)
Sgwâr \sqrt{3} yw 3.
4+2\sqrt{3}-\left(\sqrt{2}+1\right)\left(\sqrt{2}-1\right)+2\left(3-\sqrt{3}\right)
Adio 3 a 1 i gael 4.
4+2\sqrt{3}-\left(\left(\sqrt{2}\right)^{2}-1\right)+2\left(3-\sqrt{3}\right)
Ystyriwch \left(\sqrt{2}+1\right)\left(\sqrt{2}-1\right). Gellir trawsnewid lluosi yn wahaniaeth rhwng sgwariau drwy ddefnyddio’r rheol: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}. Sgwâr 1.
4+2\sqrt{3}-\left(2-1\right)+2\left(3-\sqrt{3}\right)
Sgwâr \sqrt{2} yw 2.
4+2\sqrt{3}-1+2\left(3-\sqrt{3}\right)
Tynnu 1 o 2 i gael 1.
3+2\sqrt{3}+2\left(3-\sqrt{3}\right)
Tynnu 1 o 4 i gael 3.
3+2\sqrt{3}+6-2\sqrt{3}
Defnyddio’r briodwedd ddosbarthu i luosi 2 â 3-\sqrt{3}.
9+2\sqrt{3}-2\sqrt{3}
Adio 3 a 6 i gael 9.
9
Cyfuno 2\sqrt{3} a -2\sqrt{3} i gael 0.
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}