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Question
x^{2}=1
Solve the quadratic equation
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Solve using square roots
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Solve by factoring
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Solve using the quadratic formula
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Solve using the PQ formula
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x_{1}=-1,x_{2}=1
Evaluate
x^{2}=1
Take the root of both sides of the equation and remember to use both positive and negative roots
x=\pm \sqrt{1}
Simplify the expression
x=\pm 1
\text{Separate the equation into }2\text{ possible cases}
\begin{align}&x=1\\&x=-1\end{align}
Solution
x_{1}=-1,x_{2}=1
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