Solving Quadratic Equations: Quadratic Formula — Unit test Answers

Mariya is solving the quadratic equation by completing the square.4x2-20x+3=04x2-20x=-3A(x2-5x)=-3

Solve x2 − 24x = −80 by completing the square.What is the solution set of the equation?

Clara writes the equation (x – 13)(x + 8) = 196 to solve for the missing side length of a rectangle represented by the factor x + 8. What is the missing side length represented by x + 8 units of the rectangle?

Using the Completing the Square method, what are the zeros of the quadratic function f(x) = 2x2 + 8x – 3?

Two numbers are 10 units away in different directions from their midpoint, m, on a number line. The product of the numbers is –99.

Solve x2 – 8x = 20 by completing the square. Which is the solution set of the equation?

Which equation has an a-value of –2, a b-value of 1, and a c-value of 3?

What values of b satisfy 4(3b + 2)2 = 64?

Which is a solution to the equation?(x − 3)(x − 5) = 35

What is a solution to (x + 6)(x + 2) = 60?

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = –6. Which function could Heather be writing?

The function g(x) is defined as g(x) = 6x2 + 23x – 4. When does g(x) = 0?

What are the solutions to m2 – 9 = 0?

Solve x2 + 6x = 7 by completing the square. Which is the solution set of the equation?

Liliana decides to crop a square photo 2 inches on each side to fit it into a frame. The area of the original photo was 121 square inches. In the equation (x + 2)2 = 121, x represents the side measure of the cropped photo.