Aromātai
2a\left(a-1\right)
Whakaroha
2a^{2}-2a
Tohaina
Kua tāruatia ki te papatopenga
a^{2}-1+\left(a-1\right)^{2}
Whakaarohia te \left(a-1\right)\left(a+1\right). Ka taea te whakareanga te panoni ki te rerekētanga o ngā pūrua mā te ture: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}. Pūrua 1.
a^{2}-1+a^{2}-2a+1
Whakamahia te ture huarua \left(p-q\right)^{2}=p^{2}-2pq+q^{2} hei whakaroha \left(a-1\right)^{2}.
2a^{2}-1-2a+1
Pahekotia te a^{2} me a^{2}, ka 2a^{2}.
2a^{2}-2a
Tāpirihia te -1 ki te 1, ka 0.
a^{2}-1+\left(a-1\right)^{2}
Whakaarohia te \left(a-1\right)\left(a+1\right). Ka taea te whakareanga te panoni ki te rerekētanga o ngā pūrua mā te ture: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}. Pūrua 1.
a^{2}-1+a^{2}-2a+1
Whakamahia te ture huarua \left(p-q\right)^{2}=p^{2}-2pq+q^{2} hei whakaroha \left(a-1\right)^{2}.
2a^{2}-1-2a+1
Pahekotia te a^{2} me a^{2}, ka 2a^{2}.
2a^{2}-2a
Tāpirihia te -1 ki te 1, ka 0.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
4 \sin \theta \cos \theta = 2 \sin \theta
whārite paerangi
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Arithmetic
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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}