Chapter 10  Objective 3.1  Exercises

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Solve by using the quadratic formula.

1.  6 x² + 7 x - 3 = 0

2.  3 x² + 6 x + 1 = 0

3.   y² - 6 y - 16 = 0

4.  12 x² - 5 x - 3 = 0

5.  3 x² - 3 x + 4 = 0

6.  5 y( y + 3) = 4 y + 12

7.  (3 t + 1)( t - 2) = 10

Use the discriminant to determine whether the quadratic equation has one real number solution, two real number solutions, or two complex number solutions.

8.  4 x² - 12 x + 9 = 0

9.  2 p² + 7 p + 3 = 0

10.  3 z² + 1 = 0

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