Question

The first three steps of completing the square to solve the quadratic equation x^2 +4x-6=0, are shown below

Step 1: x^2 +4x = 6
Step 2: x^2 +4x +4 = 6+4
Step 3: (x+2)^2 = 10

Answer 1

Answer: x=sqrt10-2, x=-sqrt10-2

Step-by-step explanation: square root both sides of the equation.

x+2=sqrt10,-sqrt10

subtract 2 from both sides of the equation

x=sqrt10-2, -sqrt10-2