Exam 9: Quadratic Equations

Solve the quadratic equation. Use whatever method seems to fit the situation or is convenient for you.

Solve the equation by using the quadratic formula.

Solve the equation by completing the square.

If what is ?

Solve the equation.

Solve the equation by using the quadratic formula.

Divide the complex numbers.

Solve the quadratic equation. Use whatever method seems to fit the situation or is convenient for you.

Combine the complex numbers.

Solve the equation using the quadratic formula. (Notice )

The graph of is shown in the figure. As you can see, the graph does not cross the x-axis. If the graph did cross the x-axis, the x-intercepts would be solutions to the equation . Solve this equation. The solutions will confirm the fact that the graph cannot cross the x -axis.

Solve the equation.

Give the correct final term for the following expression to ensure that the resulting trinomial is a perfect square trinomial.

Solve the quadratic equation. Use whatever method seems to fit the situation or is convenient for you.

Solve the equation using the square root method.

Graph the equation.

Combine the complex numbers.

Graph the equation. Begin by completing the square on the first two terms.

Solve the equation by using the quadratic formula.

Solve the quadratic equation. Use whatever method seems to fit the situation or is convenient for you.