193k views
4 votes
Use the quadratic formula to solve for x: 3x^2 + 14x = −11

User Scheintod
by
7.9k points

1 Answer

4 votes

Answer:

3x² + 14x = -11

3x² + 14x + 11 = 0

x = (-14 ± √(14² - 4(3)(11)))/(2×3)

= (-14 ± √(196 - 132))/6

= (-14 ± √64)/6

= (-14 ± 8)/6

= -6/6, -22/6

= -1, -3 2/3

User Mohd Nashirudden
by
7.7k points