How do you solve $9x^2=324$ ?

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Answer 1 · 2016-04-14T05:00:07

$x= +-6$

To solve $9x^2=324$

Begin by dividing both sides by $9$ to isolate the term with $x$

$(cancel9x^2)/cancel9=324/9$

This gives us

$x^2=36$

Now square root both sides of the equation to
cancel the square of $x$

$sqrt(x^2)=sqrt36$

We get

$x= +-6$

How do you solve 9x^2=3249x^2=324?