Aromātai
20-12\sqrt{2}\approx 3.029437252
Tauwehe
4 {(5 - 3 \sqrt{2})} = 3.029437252
Tohaina
Kua tāruatia ki te papatopenga
2\left(\sqrt{2}\right)^{2}-8\sqrt{2}-4\sqrt{2}+16
Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o 2\sqrt{2}-4 ki ia tau o \sqrt{2}-4.
2\times 2-8\sqrt{2}-4\sqrt{2}+16
Ko te pūrua o \sqrt{2} ko 2.
4-8\sqrt{2}-4\sqrt{2}+16
Whakareatia te 2 ki te 2, ka 4.
4-12\sqrt{2}+16
Pahekotia te -8\sqrt{2} me -4\sqrt{2}, ka -12\sqrt{2}.
20-12\sqrt{2}
Tāpirihia te 4 ki te 16, ka 20.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
4 \sin \theta \cos \theta = 2 \sin \theta
whārite paerangi
y = 3x + 4
Arithmetic
699 * 533
Poukapa
\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]
whārite Simultaneous
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Whakarerekētanga
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Whakaurunga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}