Question

Rezolva ecuatiile
-2x^2+x+3=0
2x^2-4x+2=0
3x^2+x +1=0
X^2-1=x+3
2(x+1)-x(x+1)=0
X^2-6x+9=4
1-(x-2)^2=0
Va rog e urgent
Multumesc

Answer 1

Rezolva cu ecuatia de gradul 2.
Gaseste coeficientii a, b, c si calculeaza delta=
${b}^{2} - 4ac$
apoi calculeaza:
$x1 = \frac{ - b + \sqrt{delta} }{2a}$
si
$x2 = \frac{ - b - \sqrt{delta} }{2a}$
Succes!