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# Use the quadratic formula to find any x-intercepts on the graph of the equation.

y=3x^2+3x-3

I have to options

Option #1
x=?????     simplify you answer. type an exact answer using radicals as needed. Use a comma to separate answers as needed.

Option #2
???  They are no x-intercepts

Only one option is allowed

### 1 Answer by Expert Tutors

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Robert J. | Certified High School AP Calculus and Physics TeacherCertified High School AP Calculus and Ph...
4.6 4.6 (13 lesson ratings) (13)
1
Solve 3x^2+3x-3 = 0
Dividing each term by 3,
x^2+x-1 = 0
Method 1. Completing the square
=> (x+1/2)^2 = 1+1/4 = 5/4
x = -(1/2) ± √(5)/2 <==Answer

Method 2. Using quadratic formula
x = (-1±√(1+4))/2 = -(1/2) ± √(5)/2<==Same answer

### Comments

How do I write this in a answer from its not accepting it
If it's computer-based, sometimes the software wants two separate answers, separated by commas.

Try:
(-1+√5)/2,  (-1 - √5)/2

or

-1 + √5   ,    -1 - √5
---------        --------
2                2