Whakaoti mō x
x=-\frac{6}{7}\approx -0.857142857
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x-2-8x=10+10x
Tāpirihia te -7 ki te 5, ka -2.
-4x-2=10+10x
Pahekotia te 4x me -8x, ka -4x.
-4x-2-10x=10
Tangohia te 10x mai i ngā taha e rua.
-14x-2=10
Pahekotia te -4x me -10x, ka -14x.
-14x=10+2
Me tāpiri te 2 ki ngā taha e rua.
-14x=12
Tāpirihia te 10 ki te 2, ka 12.
x=\frac{12}{-14}
Whakawehea ngā taha e rua ki te -14.
x=-\frac{6}{7}
Whakahekea te hautanga \frac{12}{-14} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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whārite paerangi
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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}