__Questions:__- 3x
^{2}+ 8x + 6 = 0 - z
^{2}= 9 - 9d
^{2}+ 16 = 24d - -2x
^{2}= 25 - 10x - what values of a, b, and c should be substituted into the quadratic formula to solve 5x
^{2}- 3x + 2 = 0? - a = 5; b = -3; c = -2
- a = 5; b = 3; c = -2
- a = 5; b = -3; c = 2
- a = 5; b = -3; c = 2
- What does it mean if the value under the radical sign in the quadratic formula is negative?
- The quadratic equation has one real solution.
- The quadratic equation has two real solutions.
- The quadratic equation has no real solution.
- There is an error in the calculations.
- If 16 + r
^{2}- 8r = 0, what is*r*? - -4
- -2
- 2
- 4
- If 2n
^{2}- 98, what is n? - -49 or 49
- -7 or 7
- 7
- 49
- If 3x
^{2}+ 16x - 84 = 0, what is x (rounded)? - -3.26
- -3.26, 8.59
- 3.26, -8.59
- no real solutions
- If 34z
^{2}+ 19z = 15, what is z (rounded)? - -0.44, 1.00
- 0.44, -1.00
- 1.00
- no real solutions

Answer:

- 0
- 2
- 1
- 0
- a = 5; b = -3; c = 2
- The quadratic equation has no real solution.
- 4
- -7 or 7
- 3.26, -8.59
- 0.44, -1.00

Reference:

Complete Test Preparation for the GED Test 2014 by Steck-Vaughn