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Solving Quadratic Equations
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solve the equation using square roots x ^2-81=0
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Using square roots?
yes
So do u add 81 on both sides and then square root both sides
i dont know what to do
Add 81 to both sides
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-81 ,81
Use difference of two squares
solve the equation using square roots 3x^2-147=0
i help now
Ok. Put the 147 on the other side.
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Then you divide 147 by 3.
so help. much math. so square. pls help. wow.
You can now find the value of x using square roots (square root both sides).
Remember though, there are two values of x here.
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