Tauwehe
\frac{\left(-a-2\right)\left(a-2\right)}{2}
Aromātai
-\frac{a^{2}}{2}+2
Tohaina
Kua tāruatia ki te papatopenga
\frac{-a^{2}+4}{2}
Tauwehea te \frac{1}{2}.
\left(2-a\right)\left(2+a\right)
Whakaarohia te -a^{2}+4. Tuhia anō te -a^{2}+4 hei 2^{2}-a^{2}. Ka taea te rerekētanga o ngā pūrua te whakatauwehe mā te ture: p^{2}-q^{2}=\left(p-q\right)\left(p+q\right).
\left(-a+2\right)\left(a+2\right)
Whakaraupapatia anō ngā kīanga tau.
\frac{\left(-a+2\right)\left(a+2\right)}{2}
Me tuhi anō te kīanga whakatauwehe katoa.
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}