Question

Rezolvati ecuația: x la a2a -2x-24=0

Answer 1

a=1
b=-2
c=-24
Δ=b la a2a -4ac=4+96=100
x 1 , 2=(-b+ sau - √Δ)/2a=(2+ sau -10)/2⇒
⇒x1 =6 si x2=-4

Answer 2

a=1 b=-2 c=-24
discriminanta=b la a 2 - 4ac= -2 la a 2 - 4 * 1*(-24)=4+96=100>0
$x_{1} = \frac{-(-2)- \sqrt{100} }{2} = \frac{-8}{2} = -4$
$x_{2} = \frac{-(-2)+ \sqrt{100} }{2} = 6$