SOLUTION: 5b. What three techniques can be used to solve a quadratic equation? Demonstrate these techniques on the equation "12x2 - 10x - 42 = 0." thank you for your help.

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Question 182677: 5b.
What three techniques can be used to solve a quadratic equation? Demonstrate these techniques on the equation "12x2 - 10x - 42 = 0."
thank you for your help.

Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!

1. Quadratic formula,











.
.
.
2. Factor the equation,


First solution:



Second solution:



.
.
.
3. Graph and make reasonable guesses.

Iterate until you find the answer.
Although it's easy for this equation, it may not be the best method for every equation.

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