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Mathematics 8 Online
OpenStudy (anonymous):

How do I start to solve this? Find all real solutions of the equation exactly. 15z^4-14z^2+3=0

OpenStudy (anonymous):

Use z^2=s then solve the equation for x then take the square root of the solution to find z.

OpenStudy (asnaseer):

this is basically a "hidden" quadratic

OpenStudy (anonymous):

Find factors of 45 (15*3) that add to make -14

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