Posted by tanya on Wednesday, February 15, 2012 at 2:17pm.
If your expressions mean :
x ^ 2 - 9 x = 0
x ^ 2 +8 x = 0
x ^ 2 = 6 x
x ^ 2 = - 3 x
Then in google type:
quadratic equation online
When you see list of results click on:
Free Online Quadratic Equation Solver:Solve by Quadratic Formula
When page be open in rectangle type your exuation and click optin: solve it!
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