Question 1124830
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<pre>
Solve an equation


    {{{3n^2 - 30n - 150}}} = 450.


It is the same as


     {{{3n^2 - 30n - 600}}} = 0


and is equivalent to


     {{{n^2 - 10n - 200}}} = 0.


You can solve it by using the quadratic formula or using factoring.


<U>Answer</U>.  20 units.
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