Question

X2 + 3x + 1 = 0
what are the 2 values for x ?

Answer 1

x=-0.38 or -2.62

Explanation:

x²+3x-1=0

using the general formula...

-b±√b²-4ac/2a

a=1

b=3

c=1

-3±√3²-4(1×1)/2×1

-3±√9-4/2

-3±√5/2

-3+√5/2 or -3-√5/2

-0.38 or -2.62