Solve by Factoring a^2-6a+9=0

Factor using the perfect square rule.
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Rewrite as .
Check the middle term by multiplying and compare this result with the middle term in the original expression.
Factor using the perfect square trinomial rule , where and .
Set the equal to .
Add to both sides of the equation.
Solve by Factoring a^2-6a+9=0

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