The Quadratic Formula Answers

Using the quadratic formula to solve 7x2 – x = 7, what are the values of x?

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

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?

What is the discriminant of ?

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?

Which equation could generate the curve in the graph below?

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:

If the discriminant of a quadratic equation is equal to , which statement describes the roots?

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

Which equation could generate the curve in the graph below?