Whakaoti mō x
x=-2.5625
Graph
Tohaina
Kua tāruatia ki te papatopenga
2\times 0.5625+2x+4=0
Tātaihia te 0.75 mā te pū o 2, kia riro ko 0.5625.
1.125+2x+4=0
Whakareatia te 2 ki te 0.5625, ka 1.125.
5.125+2x=0
Tāpirihia te 1.125 ki te 4, ka 5.125.
2x=-5.125
Tangohia te 5.125 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=\frac{-5.125}{2}
Whakawehea ngā taha e rua ki te 2.
x=\frac{-5125}{2000}
Whakarohaina te \frac{-5.125}{2} mā te whakarea i te taurunga me te tauraro ki te 1000.
x=-\frac{41}{16}
Whakahekea te hautanga \frac{-5125}{2000} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 125.
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}