You can put this solution on YOUR website!
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For this problem the easiest way to do it is to add 8 to both sides. Then the problem becomes
.
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Then just take the square root of both sides and you get
. and
.
The square root of 8 can be simplified by factoring it into which can then
be written as . Since you can substitute 2 for
to get that
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So the answer simplifies to:
. and
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There are no complex factors involved here.
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The only thing you have to be careful with in solving this problem is to recognize
that the value for x has to be either plus or minus because if you square them both the
plus and minus values will return a positive value. Squaring:
. and
.
will both compute to be +8. Therefore either of these will satisfy the equation.
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Hope this helps you with this problem.
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