SOLUTION: Function: f(x)= 2x^2-x-1 If f(x)= =1, what is x?

Question 712491: Function: f(x)= 2x^2-x-1
If f(x)= =1, what is x?

Found 2 solutions by algebrahouse.com, MathLover1:
Answer by algebrahouse.com(1659) (Show Source): You can put this solution on YOUR website!

Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

If ,then

or

...use quadratic formula to solve for

solutions:

or

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