dionnegainesjon2454 dionnegainesjon2454
  • 22-10-2019
  • Mathematics
contestada

Find a formula for the product P of the solutions of the quadratic equation ax²+bx+c=0 .

Respuesta :

Manetho
Manetho Manetho
  • 22-10-2019

Answer:

product of the roots= c/a

Step-by-step explanation:

The the two roots(α and β) of the quadratic equation ax²+bx+c=0  as given by shridharacharya formula are

[tex]\alpha= \frac{-b+\sqrt{b^2-4ac} }{2a}[/tex]

[tex]\beta= \frac{-b-\sqrt{b^2-4ac} }{2a}[/tex]

now product of the roots

αβ= [tex]\frac{-b+\sqrt{b^2-4ac} }{2a}[/tex]×[tex]\frac{-b-\sqrt{b^2-4ac} }{2a}[/tex]

use formula (a+b)(a-b)= a^2-b^2 and solve we get

αβ= c/a

therefore product of the roots= c/a

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