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January 28, 2015

January 28, 2015

Posted by **kathy** on Thursday, February 3, 2011 at 1:02pm.

3x^2- 12x - 24 = 0

- algebra -
**helper**, Thursday, February 3, 2011 at 2:12pmFYI-"algabra" is not how you spell algebra.

3x^2- 12x - 24 = 0

This equation cannot be solved by factoring.

Use the Quadratic Formula, or the method of completing the square.

Here is the quadratic formula.

x = (-b +- (sqrt(b^2 - 4ac)))/2a

3x^2 - 12x - 24 = 0

a = 3, b = -12, c = -24

Plug these values for a, b, and c in this formula and solve.

Post your work if you get stuck and someone will assist you.

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