Whakaoti mō x
x=-12
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x-4x-8=16
Whakamahia te āhuatanga tohatoha hei whakarea te -4 ki te x+2.
-2x-8=16
Pahekotia te 2x me -4x, ka -2x.
-2x=16+8
Me tāpiri te 8 ki ngā taha e rua.
-2x=24
Tāpirihia te 16 ki te 8, ka 24.
x=\frac{24}{-2}
Whakawehea ngā taha e rua ki te -2.
x=-12
Whakawehea te 24 ki te -2, kia riro ko -12.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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\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
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Whakarerekētanga
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Whakaurunga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
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