Aromātai
20x^{2}-7
Whakaroha
20x^{2}-7
Graph
Tohaina
Kua tāruatia ki te papatopenga
13x^{2}+8x-9-4x+7-\left(-7x^{2}+4x+5\right)
Pahekotia te 7x^{2} me 6x^{2}, ka 13x^{2}.
13x^{2}+4x-9+7-\left(-7x^{2}+4x+5\right)
Pahekotia te 8x me -4x, ka 4x.
13x^{2}+4x-2-\left(-7x^{2}+4x+5\right)
Tāpirihia te -9 ki te 7, ka -2.
13x^{2}+4x-2+7x^{2}-4x-5
Hei kimi i te tauaro o -7x^{2}+4x+5, kimihia te tauaro o ia taurangi.
20x^{2}+4x-2-4x-5
Pahekotia te 13x^{2} me 7x^{2}, ka 20x^{2}.
20x^{2}-2-5
Pahekotia te 4x me -4x, ka 0.
20x^{2}-7
Tangohia te 5 i te -2, ka -7.
13x^{2}+8x-9-4x+7-\left(-7x^{2}+4x+5\right)
Pahekotia te 7x^{2} me 6x^{2}, ka 13x^{2}.
13x^{2}+4x-9+7-\left(-7x^{2}+4x+5\right)
Pahekotia te 8x me -4x, ka 4x.
13x^{2}+4x-2-\left(-7x^{2}+4x+5\right)
Tāpirihia te -9 ki te 7, ka -2.
13x^{2}+4x-2+7x^{2}-4x-5
Hei kimi i te tauaro o -7x^{2}+4x+5, kimihia te tauaro o ia taurangi.
20x^{2}+4x-2-4x-5
Pahekotia te 13x^{2} me 7x^{2}, ka 20x^{2}.
20x^{2}-2-5
Pahekotia te 4x me -4x, ka 0.
20x^{2}-7
Tangohia te 5 i te -2, ka -7.
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}