4y^2-2/7y^7/2

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Solution for 4y^2-2/7y^7/2 equation: 


y in (-oo:+oo)

4*y^2-(((2/7)*y^7)/2) = 0

(-1/7)*y^7+4*y^2 = 0

4*y^2-1/7*y^7 = 0

y^2*(4-1/7*y^5) = 0

-1/7*y^5 = -4 // : -1/7

y^5 = 28

y^5 = 28 // ^ 1/5

y = 28^(1/5)

y^2 = 0

1*y^2 = 0 // : 1

y^2 = 0

y = 0

y in { 28^(1/5), 0 }

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