Whakaoti mō x
x\geq 0
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Tohaina
Kua tāruatia ki te papatopenga
-x-2-5x\leq 4x-2
Hei kimi i te tauaro o x+2, kimihia te tauaro o ia taurangi.
-6x-2\leq 4x-2
Pahekotia te -x me -5x, ka -6x.
-6x-2-4x\leq -2
Tangohia te 4x mai i ngā taha e rua.
-10x-2\leq -2
Pahekotia te -6x me -4x, ka -10x.
-10x\leq -2+2
Me tāpiri te 2 ki ngā taha e rua.
-10x\leq 0
Tāpirihia te -2 ki te 2, ka 0.
x\geq 0
Ko te otinga o ngā tau e rua ko ≤0 ina ko ≥0 tētahi, ā, ko ≤0 tētahi. Ina ko -10\leq 0, ko ≥0 rawa a x.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
4 \sin \theta \cos \theta = 2 \sin \theta
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}