Whakaoti mō x
x = -\frac{115}{14} = -8\frac{3}{14} \approx -8.214285714
Graph
Tohaina
Kua tāruatia ki te papatopenga
x=-\frac{19}{2}+\frac{9}{7}
Me tāpiri te \frac{9}{7} ki ngā taha e rua.
x=-\frac{133}{14}+\frac{18}{14}
Ko te maha noa iti rawa atu o 2 me 7 ko 14. Me tahuri -\frac{19}{2} me \frac{9}{7} ki te hautau me te tautūnga 14.
x=\frac{-133+18}{14}
Tā te mea he rite te tauraro o -\frac{133}{14} me \frac{18}{14}, me tāpiri rāua mā te tāpiri i ō raua taurunga.
x=-\frac{115}{14}
Tāpirihia te -133 ki te 18, ka -115.
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}