Whakaoti mō y (complex solution)
y\in \mathrm{C}
Whakaoti mō y
y\in \mathrm{R}
Graph
Tohaina
Kua tāruatia ki te papatopenga
-4y-4+6y=2\left(y+2\right)-8
Whakamahia te āhuatanga tohatoha hei whakarea te -4 ki te y+1.
2y-4=2\left(y+2\right)-8
Pahekotia te -4y me 6y, ka 2y.
2y-4=2y+4-8
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te y+2.
2y-4=2y-4
Tangohia te 8 i te 4, ka -4.
2y-4-2y=-4
Tangohia te 2y mai i ngā taha e rua.
-4=-4
Pahekotia te 2y me -2y, ka 0.
\text{true}
Whakatauritea te -4 me te -4.
y\in \mathrm{C}
He pono tēnei mō tētahi y ahakoa.
-4y-4+6y=2\left(y+2\right)-8
Whakamahia te āhuatanga tohatoha hei whakarea te -4 ki te y+1.
2y-4=2\left(y+2\right)-8
Pahekotia te -4y me 6y, ka 2y.
2y-4=2y+4-8
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te y+2.
2y-4=2y-4
Tangohia te 8 i te 4, ka -4.
2y-4-2y=-4
Tangohia te 2y mai i ngā taha e rua.
-4=-4
Pahekotia te 2y me -2y, ka 0.
\text{true}
Whakatauritea te -4 me te -4.
y\in \mathrm{R}
He pono tēnei mō tētahi y ahakoa.
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}