Whakaoti mō x
x = -\frac{7}{5} = -1\frac{2}{5} = -1.4
Graph
Tohaina
Kua tāruatia ki te papatopenga
3x-7-8x=0
Tangohia te 8x mai i ngā taha e rua.
-5x-7=0
Pahekotia te 3x me -8x, ka -5x.
-5x=7
Me tāpiri te 7 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
x=\frac{7}{-5}
Whakawehea ngā taha e rua ki te -5.
x=-\frac{7}{5}
Ka taea te hautanga \frac{7}{-5} te tuhi anō ko -\frac{7}{5} mā te tango i te tohu tōraro.
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
\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}