SOLUTION: Use the quadratic formula to solve the equation. 2x^2+ 12x =-5

Question 116538: Use the quadratic formula to solve the equation.
2x^2+ 12x =-5
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Use the quadratic formula to solve the equation.
2x^2+ 12x =-5
:
Put the equation in the ax^2 + bx + c = 0 form, add 5 to both sides:
2x^2 + 12x + 5 = 0
:
In this equation a = 2; b = 12; c = 5

Substitute:

:
Find the square root of 104:

:
Two solutions

x = -.45
and

x = -5.55
:
Learn this procedure by heart and you can do any quadratic equation that it's possible to solve. It would be time well spent.
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