Question

3x ao guadrado +4x +1=0

Answer 1

3x² + 4x + 1 = 0

A= 3

B= 4

C= 1

∆= b² -4ac

∆= 4² - 4 • 3• 1

∆= 16 - 12

∆= 4

x= - b ± √∆ /2a

x= - 4 ± √4 / 2 • 3

x'= - 4 + 2/6 = - 2/6 = - 1/3

x''= - 4 - 2/6 = - 6/6 = - 1

S= ( - 1 , - 1/3)