Fachtóirigh
3\left(x-\frac{25-\sqrt{703}}{3}\right)\left(x-\frac{\sqrt{703}+25}{3}\right)
Luacháil
3x^{2}-50x-26
Graf
Tráth na gCeist
Polynomial
3 { x }^{ 2 } -50x-26
Roinn
Cóipeáladh go dtí an ghearrthaisce
3x^{2}-50x-26=0
Is féidir an trasfhoirmiú ax^{2}+bx+c=a\left(x-x_{1}\right)\left(x-x_{2}\right) a úsáid chun luach iltéarmach cearnach a fhachtóiriú, nuair is réitigh iad x_{1} agus x_{2} ar an gcothromóid chearnach ax^{2}+bx+c=0.
x=\frac{-\left(-50\right)±\sqrt{\left(-50\right)^{2}-4\times 3\left(-26\right)}}{2\times 3}
Is féidir gach cothromóid san fhoirm ax^{2}+bx+c=0 a réiteach ag baint úsáid as an bhfoirmle chearnach : \frac{-b±\sqrt{b^{2}-4ac}}{2a}. Tugann an fhoirmle chearnach dhá réiteach, ceann amháin nuair is suimiú é ± agus ceann eile nuair is dealú é.
x=\frac{-\left(-50\right)±\sqrt{2500-4\times 3\left(-26\right)}}{2\times 3}
Cearnóg -50.
x=\frac{-\left(-50\right)±\sqrt{2500-12\left(-26\right)}}{2\times 3}
Méadaigh -4 faoi 3.
x=\frac{-\left(-50\right)±\sqrt{2500+312}}{2\times 3}
Méadaigh -12 faoi -26.
x=\frac{-\left(-50\right)±\sqrt{2812}}{2\times 3}
Suimigh 2500 le 312?
x=\frac{-\left(-50\right)±2\sqrt{703}}{2\times 3}
Tóg fréamh chearnach 2812.
x=\frac{50±2\sqrt{703}}{2\times 3}
Tá 50 urchomhairleach le -50.
x=\frac{50±2\sqrt{703}}{6}
Méadaigh 2 faoi 3.
x=\frac{2\sqrt{703}+50}{6}
Réitigh an chothromóid x=\frac{50±2\sqrt{703}}{6} nuair is ionann ± agus plus. Suimigh 50 le 2\sqrt{703}?
x=\frac{\sqrt{703}+25}{3}
Roinn 50+2\sqrt{703} faoi 6.
x=\frac{50-2\sqrt{703}}{6}
Réitigh an chothromóid x=\frac{50±2\sqrt{703}}{6} nuair is ionann ± agus míneas. Dealaigh 2\sqrt{703} ó 50.
x=\frac{25-\sqrt{703}}{3}
Roinn 50-2\sqrt{703} faoi 6.
3x^{2}-50x-26=3\left(x-\frac{\sqrt{703}+25}{3}\right)\left(x-\frac{25-\sqrt{703}}{3}\right)
Úsáid ax^{2}+bx+c=a\left(x-x_{1}\right)\left(x-x_{2}\right) chun an slonn bunaidh a fhachtóiriú. Cuir \frac{25+\sqrt{703}}{3} in ionad x_{1} agus \frac{25-\sqrt{703}}{3} in ionad x_{2}.
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