Whakaoti mō p
p\in \left(0,4\right)
Tohaina
Kua tāruatia ki te papatopenga
4p\left(-p\right)+16p>0
Whakamahia te āhuatanga tohatoha hei whakarea te 4p ki te -p+4.
-4pp+16p>0
Whakareatia te 4 ki te -1, ka -4.
-4p^{2}+16p>0
Whakareatia te p ki te p, ka p^{2}.
4p^{2}-16p<0
Me whakarea te koreōrite ki te -1 kia tōrunga ai te tau whakarea o te pū tino teitei i -4p^{2}+16p. I te mea he tōraro a -1, ka huri te ahunga koreōrite.
4p\left(p-4\right)<0
Tauwehea te p.
p>0 p-4<0
Kia tōraro te otinga, me tauaro rawa ngā tohu o te p me te p-4. Whakaarohia te tauira ina he tōrunga te p he tōraro te p-4.
p\in \left(0,4\right)
Te otinga e whakaea i ngā koreōrite e rua ko p\in \left(0,4\right).
p-4>0 p<0
Whakaarohia te tauira ina he tōrunga te p-4 he tōraro te p.
p\in \emptyset
He teka tēnei mō tētahi p ahakoa.
p\in \left(0,4\right)
Ko te otinga whakamutunga ko te whakakotahi i ngā otinga kua whiwhi.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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\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]
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Whakaurunga
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Ngā Tepe
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