Whakaoti mō x
x=-3
Graph
Tohaina
Kua tāruatia ki te papatopenga
11x+20-4x=-1
Tangohia te 4x mai i ngā taha e rua.
7x+20=-1
Pahekotia te 11x me -4x, ka 7x.
7x=-1-20
Tangohia te 20 mai i ngā taha e rua.
7x=-21
Tangohia te 20 i te -1, ka -21.
x=\frac{-21}{7}
Whakawehea ngā taha e rua ki te 7.
x=-3
Whakawehea te -21 ki te 7, kia riro ko -3.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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Arithmetic
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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
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Whakarerekētanga
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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}