Answer:
x = -1 or x = -3
Step-by-step explanation:
Let's solve your equation step-by-step.
[tex]x^{2} + 4x + 3 = 0[/tex]
For this equation: a=1, b=4, c=3
[tex]1x^{2} + 4x + 3 = 0[/tex]
Step 1: Use quadratic formula with a=1, b=4, c=3.
[tex]x =\frac{-b +\sqrt{b^{2} -4ac } }{2a}\\x =\frac{-(4) + \sqrt{(4)^{2}-4(1)(3) } }{2(1)}\\x =\frac{-4 +\sqrt{4} }{2}\\x =-1 /-3[/tex]
