Whakaoti mō x
x=-2
Graph
Tohaina
Kua tāruatia ki te papatopenga
\sqrt{-4x+1}+12-12=15-12
Me tango 12 mai i ngā taha e rua o te whārite.
\sqrt{-4x+1}=15-12
Mā te tango i te 12 i a ia ake anō ka toe ko te 0.
\sqrt{-4x+1}=3
Tango 12 mai i 15.
-4x+1=9
Pūruatia ngā taha e rua o te whārite.
-4x+1-1=9-1
Me tango 1 mai i ngā taha e rua o te whārite.
-4x=9-1
Mā te tango i te 1 i a ia ake anō ka toe ko te 0.
-4x=8
Tango 1 mai i 9.
\frac{-4x}{-4}=\frac{8}{-4}
Whakawehea ngā taha e rua ki te -4.
x=\frac{8}{-4}
Mā te whakawehe ki te -4 ka wetekia te whakareanga ki te -4.
x=-2
Whakawehe 8 ki te -4.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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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}