Math 112 Test 2 9 pts each (1 pt free!) Feb 16, 2006

1. Solve for x: leave answer in algebraic notation.

|3x - 7| ≤ 4

Write in a + bi form (standard form)

2.

3.

4. i⁴⁴

Solve for x

5. x² - 2x - 3 = 0

6. x² - 6x = - 4

7. (2x - 5)² = 16

8. 2 x ^-4 - 5 x^-2 + 2 = 0

9.

10. Write the equation of the circle with center (5, -4) and radius 7.

11. Graph the circle whose equation is

(x + 4)² + (y - 2) = 9

5 points Bonus! Find x such that (x, 7) is 10 units from ( -4, 1) .