Respostas

2013-12-12T17:40:40-02:00
Δ = b² -4acΔ = (-1)² -4 *2 * (-3)Δ = 1 + 24Δ = 25x' = (-b + √∆)/ 2a(-(-1) + 5)/2 * 2(1 + 5)/46/41,5x'' = (-b - √∆)/ 2a(-(-1) - 5)/2 * 2(1 - 5)/4-4/4-1

S= { 6/4,-1}