SOLUTION: Which value of x makes the equation true? 3x^2 + 14x + 5 = 0 A. -5 and -1/3 B. 5 and 1/3 C. -3 and -5 D. 3 and 5 Could you please explain how you got your answer?

Question 438111: Which value of x makes the equation true?
3x^2 + 14x + 5 = 0
A. -5 and -1/3
B. 5 and 1/3
C. -3 and -5
D. 3 and 5
Could you please explain how you got your answer?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Which value of x makes the equation true?
3x^2 + 14x + 5 = 0
----------------
Quadratic Formula:
x = [-14 +- sqrt(14^2-4*3*5)]/(2*3)
---
x = [-14 +- sqrt(136)]/6
---
x = [-14 +- 2sqrt(34)}/6
============================
x = [-7+sqrt(34)]/3 or x = [-7-sqrt(34)]/3
================================
Notice: I think you either posted the wrong
equation or the wrong set of answers.
---------------------------------------------
Cheers,
Stan H.
A. -5 and -1/3
B. 5 and 1/3
C. -3 and -5
D. 3 and 5

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