Aromātai
-\frac{39}{14}\approx -2.785714286
Tauwehe
-\frac{39}{14} = -2\frac{11}{14} = -2.7857142857142856
Tohaina
Kua tāruatia ki te papatopenga
-\frac{7}{2}-\frac{-5}{7}
Ka taea te hautanga \frac{7}{-2} te tuhi anō ko -\frac{7}{2} mā te tango i te tohu tōraro.
-\frac{7}{2}-\left(-\frac{5}{7}\right)
Ka taea te hautanga \frac{-5}{7} te tuhi anō ko -\frac{5}{7} mā te tango i te tohu tōraro.
-\frac{7}{2}+\frac{5}{7}
Ko te tauaro o -\frac{5}{7} ko \frac{5}{7}.
-\frac{49}{14}+\frac{10}{14}
Ko te maha noa iti rawa atu o 2 me 7 ko 14. Me tahuri -\frac{7}{2} me \frac{5}{7} ki te hautau me te tautūnga 14.
\frac{-49+10}{14}
Tā te mea he rite te tauraro o -\frac{49}{14} me \frac{10}{14}, me tāpiri rāua mā te tāpiri i ō raua taurunga.
-\frac{39}{14}
Tāpirihia te -49 ki te 10, ka -39.
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
\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}