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Tauwehe
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2\left(p^{2}-5p\right)
Tauwehea te 2.
p\left(p-5\right)
Whakaarohia te p^{2}-5p. Tauwehea te p.
2p\left(p-5\right)
Me tuhi anō te kīanga whakatauwehe katoa.
2p^{2}-10p=0
Ka taea te huamaha pūrua te tauwehe mā te whakamahi i te huringa ax^{2}+bx+c=a\left(x-x_{1}\right)\left(x-x_{2}\right), ina ko x_{1} me x_{2} ngā otinga o te whārite pūrua ax^{2}+bx+c=0.
p=\frac{-\left(-10\right)±\sqrt{\left(-10\right)^{2}}}{2\times 2}
Ko ngā whārite katoa o te āhua ax^{2}+bx+c=0 ka taea te whakaoti mā te whakamahi i te tikanga tātai pūrua: \frac{-b±\sqrt{b^{2}-4ac}}{2a}. E rua ngā otinga ka puta i te tikanga tātai pūrua, ko tētahi ina he tāpiri a ±, ā, ko tētahi ina he tango.
p=\frac{-\left(-10\right)±10}{2\times 2}
Tuhia te pūtakerua o te \left(-10\right)^{2}.
p=\frac{10±10}{2\times 2}
Ko te tauaro o -10 ko 10.
p=\frac{10±10}{4}
Whakareatia 2 ki te 2.
p=\frac{20}{4}
Nā, me whakaoti te whārite p=\frac{10±10}{4} ina he tāpiri te ±. Tāpiri 10 ki te 10.
p=5
Whakawehe 20 ki te 4.
p=\frac{0}{4}
Nā, me whakaoti te whārite p=\frac{10±10}{4} ina he tango te ±. Tango 10 mai i 10.
p=0
Whakawehe 0 ki te 4.
2p^{2}-10p=2\left(p-5\right)p
Tauwehea te kīanga taketake mā te whakamahi i te ax^{2}+bx+c=a\left(x-x_{1}\right)\left(x-x_{2}\right). Me whakakapi te 5 mō te x_{1} me te 0 mō te x_{2}.