Solve using the quadratic formula: 3x² + 5x - 7 = 0

Name: Solve using the quadratic formula: 3x 2 + 5x - 7 = 0
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Use the quadratic formula: 
x = (-b ± sqrt(b^2 - 4ac)) / 2a
In this equation, a = 3, b = 5, and c = -7
Substitute in the values:
x = (-5 ± sqrt(5^2 - 4(3)(-7))) / 2(3)
Simplify:
x = (-5 ± sqrt(109)) / 6
So there are two possible solutions:
x1 = (-5 + sqrt(109)) / 6
x2 = (-5 - sqrt(109)) / 6
Therefore, the correct answer is B.

Solve Using the Quadratic Formula: 3x2 + 5x - 7

Solve Using the Quadratic Formula: 3x² + 5x - 7