Question

Solve x2 + 3x + 1 = 0.
x equals the quantity of 3 plus or minus square root 13 all over 2
x equals the quantity of negative 3 plus or minus square root 13 all over 2
x equals the quantity of negative 3 plus or minus square root 5 all over 2
x equals the quantity of 3 plus or minus square root 5 all over 2

Answer 1

use the quadratic formula

Answer 2

Here's the quadratic formula. \[\huge~\rm~x=\frac{ -b \pm \sqrt{b^2-4ac} }{ 2a }\]

Answer 3

a=1
b=3
c=1
now plug them into ^^^