### Sample 2nd Midterm

To get to a complete worked solution, click on the problem number. Click on the problem number in the solution to get back to the test.

1. Add

2.

In 3 - 5, solve for x and check.

3.

4.

5.

In 6 - 7, simplify

6.

7.

8a. Change to radical notation.

b. Change to fractional exponents.

9. Simplify a.

b.

10. Derive the quadratic formula by solving the equation

*ax*^{2} + *bx* + *c* = 0

by completing the square, and check the solution.