Question

Solve this quadratic equation using the quadratic formula.

3x2 + 5x + 1 = 0

Answer 1

Delta = b^2 - 4ac
x = ( - b + - sqrt Delta ) / 2a

a = 3
b = 5
c = 1

D = 25 - 4 * 3 * 1
D = 25 - 12
D = 13

x = (-5 + - 3.6) /6
x = - 5 + 3.6 / 6
x = -1.4/6
x = -14/60
x = - 7/30

x = - 5 - 3.6 / 6
x = -8.6 / 6
x = -86/60
x = -43/30