The Quadratic Formula Answers

When deriving the quadratic formula by completing the square, what expression can be added to both sides of the equation to create a perfect square trinomial?

If is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the equation?

Which equation can be solved using the expression for x?

Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?

In the derivation of the quadratic formula by completing the square, the equation is created by forming a perfect square trinomial. What is the result of applying the square root property of equality to this equation?

What is the discriminant of ?

Which equation shows the quadratic formula used correctly to solve 5x2 + 3x – 4 = 0 for x?

Which equation has the solutions ?

The first two steps in the derivation of the quadratic formula by completing the square are shown below. Which answer choice shows the correct next step?Step 1: Step 2:

Using the quadratic formula to solve 5x = 6x2 – 3, what are the values of x?