Question

Rezolvati in R ecuatia: 6x^2-7x-3=0
Plz explicati-mi si mie! Rezolvati in cel mai explicit mod!

Answer 1

ai rezolvarea in atașare

Answer 2

$6x^{2} -7x-3=0$
calculam Δ=$b^{2} -4ac$
unde a=6; b=7; c=3 din ecuatia ta
$7^{2} - 4*6*(-3)=49+72=121$
$x_{1} = \frac{-b+ \sqrt{ b^{2} -4ac} }{2a}$

$x_{1} = \frac{-(-7)+ \sqrt{}121 }{2*6} = \frac{7+11}{12} = \frac{18}{12} = \frac{3}{2}$

$x_{2} = \frac{-(-7)- \sqrt{(-7)^{2} -4*6*(-3)} }{2*6} = \frac{7- \sqrt{121} }{12} = \frac{7-11}{12} = \frac{-4}{12} = \frac{-1}{3}$