Step 4: x+2= ± √10
Step 5: x=-2 ± √10
Step 6: x=-2 + √10 or x=-2 - √10
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=6+4
Step3:(x+2)^2=10
What are the next three steps?
1 answer