Whakaoti mō x
x\in \left(-\frac{7}{4},0\right)
Graph
Pātaitai
Algebra
4 x ^ { 2 } + 7 x < 0
Tohaina
Kua tāruatia ki te papatopenga
x\left(4x+7\right)<0
Tauwehea te x.
x+\frac{7}{4}>0 x<0
Kia tōraro te otinga, me tauaro rawa ngā tohu o te x+\frac{7}{4} me te x. Whakaarohia te tauira ina he tōrunga te x+\frac{7}{4} he tōraro te x.
x\in \left(-\frac{7}{4},0\right)
Te otinga e whakaea i ngā koreōrite e rua ko x\in \left(-\frac{7}{4},0\right).
x>0 x+\frac{7}{4}<0
Whakaarohia te tauira ina he tōrunga te x he tōraro te x+\frac{7}{4}.
x\in \emptyset
He teka tēnei mō tētahi x ahakoa.
x\in \left(-\frac{7}{4},0\right)
Ko te otinga whakamutunga ko te whakakotahi i ngā otinga kua whiwhi.
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}