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Mathematics 14 Online
OpenStudy (anonymous):

*** I will give you a medal (: *** Find all the zeroes of the equation. 2x^4+70x^2-72=0

OpenStudy (anonymous):

@mathstudent55

OpenStudy (saifoo.khan):

Suppose x^2 = y. You can rewrite it as: 2y^2 + 70x - 72 = 0

OpenStudy (anonymous):

i dont understand...

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