Question 830090: 9x^2-12=8x^2-4x
What is the value of X?
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! ---
9x^2 - 12 = 8x^2 - 4x
x^2 + 4x - 12 = 0
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the above quadratic equation is in standard form, with a=1, b=4, and c=-12
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to solve the quadratic equation, by using the quadratic formula, copy and paste this:
1 4 -12
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the quadratic has two real roots at:
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x = 2
x = -6
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