Solvex2 + 4x + 3 = 0 by completing the square.
-6,-1
-3,-1
1,3
0-6
-6, -2

x=−1 or x=−3

Step-by-step explanation:

Let's solve your equation step-by-step.

x2+4x+3=0

Step 1: Subtract 3 from both sides.

x2+4x+3−3=0−3

x2+4x=−3

Step 2: The coefficient of 4x is 4. Let b=4.

Then we need to add (b/2)^2=4 to both sides to complete the square.

Add 4 to both sides.

x2+4x+4=−3+4

x2+4x+4=1

Step 3: Factor left side.

(x+2)2=1

Step 4: Take square root.

x+2=±√1

Step 5: Add -2 to both sides.

x+2+−2=−2±√1

x=−2±√1

x=−2+1 or x=−2−1

hopes this helps:-)

ian gonna lie that is way to much

560

hope this : )