(14(2x)^3y^4+2)/28x^7y^2

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Solution for (14(2x)^3y^4+2)/28x^7y^2 equation: 


x in (-oo:+oo)

x^7*y^2*((14*(2*x)^3*y^4+2)/28) = 0

(x^7*y^2*(112*x^3*y^4+2))/28 = 0

( 112*x^3*y^4+2 )

112*x^3*y^4 = -2 // : 112*y^4

x^3 = (-y^-4)/56

x^3 = (-y^-4)/56 // ^ 1/3

x = (y^(-4/3))/(2*7^(1/3))

( x^7*y^2 )

x^7*y^2 = 0 // : y^2

x^7 = 0

x = 0

x in { (y^(-4/3))/(2*7^(1/3)), 0 }

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