Question

considere a equaçao 2x ao quadrado-50=0
resolva essa equaçao do segundo grau incompleta

a)sem usar a formula de bhaskara

b)usando a formula de bhaskara

Answer 1

a)
2x²-50=0
2x²=50
x²=50/2
x²=25
x=√25
x'=5
x''=-5

b)
(0±√0-4*2*-50)/2*2
(0±√0+400)/4
(0±20)/4
x'=5
x''=-5