Question

6x la a 2+2x-2 egal 0

Answer 1

Răspuns:

Explicație pas cu pas:

6x²+2x-2 = 0 <=>

2·(3x²+x-1) = 0

3x²+x-1 = 0 ;

a = 3 ; b = 1 ; c = -1

Δ = b²-4ac = 1-4·3·(-1) = 1+12 = 13

x₁,₂ = -b±√Δ/2a = (-1±√13)/6

x₁ = (-1-√13)/6

x₂ = (-1+√13)/6