SOLUTION: If the cost,in dollars, of a box of my favorite cereal is the same as the number of different values of x which satisfy ( x square minus nine ) to the power of three equal to ze

Question 200591: If the cost,in dollars, of a box of my favorite cereal is the same as the number of different values of x which satisfy ( x square minus nine ) to the power of three equal to zero, then a box of this cereal costs how much ?
Found 3 solutions by rfer, Alan3354, MathTherapy:
Answer by rfer(16322)   (Show Source): You can put this solution on YOUR website!
x^6-729=0
x=$2.08
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
If the cost,in dollars, of a box of my favorite cereal is the same as the number of different values of x which satisfy ( x square minus nine ) to the power of three equal to zero, then a box of this cereal costs how much ?
------------------------
(x^2 - 9)^3 = 0
x^2 - 9 = 0
x = $3

Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!
Since , then there will be 3 SAME equations that equal 0

And so, just one of these 3 equations should be evaluated to find the different values of x

Now, since gives us x-values of + 3 or - 3, which are 2 VALUES, then the cost of the box of cereal is $2.

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