SOLUTION: Please solve 3x^2=15, and what are the x-intercepts? Thank you,

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Question 161688: Please solve 3x^2=15, and what are the x-intercepts? Thank you,
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve for x:
3x%5E2+=+15 Divide both sides by 3.
x%5E2+=+5 Take the square root of both sides.
x+=+sqrt%285%29 or x+=+-sqrt%285%29 These are the x-intercepts as you can see by the graph of the equivalent equation: y+=+x%5E2-15
graph%28400%2C400%2C-5%2C5%2C-17%2C5%2C3x%5E2-15%29