SOLUTION: Solve 15x^4-11x^2+2=0 Use radicals as needed exact answer, comma to separate answers

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Question 517128: Solve
15x^4-11x^2+2=0
Use radicals as needed exact answer, comma to separate answers
Answer by htmentor(1343) About Me  (Show Source):
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Solve
15x^4-11x^2+2=0
Use radicals as needed exact answer, comma to separate answers
=======================
Let w = x^2
Then we can write the equation as:
15w^2 - 11w + 2 = 0
This can be factored as:
(3w-1)(5w-2) = 0
The solutions are: w = 1/3, w = 2/5 -> x^2 = 1/3, x^2 = 2/5 -> x = +- 1%2Fsqrt%283%29, x = +-sqrt%282%2F5%29