How do you solve using the completing the square method #2x^2-4x-14=0#?
The two solutions are
First, divide the whole equation by two:
Then, move the constant to the other side:
Next, identify the square binomial on the left side. We know that
Now, square root both sides:
Those are the solutions. Hope this helped!
Factor out 2:
Complete the square of the brackets:
Multiply the brackets:
We can always check this: