Whakaoti mō x
x=-2
Graph
Tohaina
Kua tāruatia ki te papatopenga
0x=0\times 4-2\left(x+2\right)
Whakareatia te 0 ki te 4, ka 0.
0=0\times 4-2\left(x+2\right)
Ko te tau i whakarea ki te kore ka hua ko te kore.
0=0-2\left(x+2\right)
Whakareatia te 0 ki te 4, ka 0.
0=0-2x-4
Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te x+2.
0=-4-2x
Tangohia te 4 i te 0, ka -4.
-4-2x=0
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-2x=4
Me tāpiri te 4 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
x=\frac{4}{-2}
Whakawehea ngā taha e rua ki te -2.
x=-2
Whakawehea te 4 ki te -2, kia riro ko -2.
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}