SOLUTION: Find the real zeroes of f(x)= 3x^3-x^2-18x=6 DO NOT approximate-use rasicals as nececssary.

Question 192286: Find the real zeroes of f(x)= 3x^3-x^2-18x=6 DO NOT approximate-use rasicals as nececssary.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
First, let's factor

Start with the given expression

Group like terms

Factor out the GCF out of the first group. Factor out the GCF out of the second group

Since we have the common term , we can combine like terms

So factors to

This means that factors to

To find the zeros, set the right side equal to zero:

or Use the zero product property

, or Solve for "x" in each case

So the zeros are , or
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