Enrhifo
2\sqrt{2}+3\approx 5.828427125
Ehangu
2 \sqrt{2} + 3 = 5.828427125
Rhannu
Copïo i clipfwrdd
1+2\sqrt{2}+\left(\sqrt{2}\right)^{2}
Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(1+\sqrt{2}\right)^{2}.
1+2\sqrt{2}+2
Sgwâr \sqrt{2} yw 2.
3+2\sqrt{2}
Adio 1 a 2 i gael 3.
1+2\sqrt{2}+\left(\sqrt{2}\right)^{2}
Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(1+\sqrt{2}\right)^{2}.
1+2\sqrt{2}+2
Sgwâr \sqrt{2} yw 2.
3+2\sqrt{2}
Adio 1 a 2 i gael 3.
Enghreifftiau
Hafaliad cwadratig
{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
Rhifyddeg
699 * 533
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\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]
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\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}