(21x^3y^2)/(28x^8y^-5)

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Solution for (21x^3y^2)/(28x^8y^-5) equation: 


D( x )

28*x^8*y^-5 = 0

28*x^8*y^-5 = 0

28*x^8*y^-5 = 0

28*x^8*y^-5 = 0 // : 28*y^-5

x^8 = 0

x = 0

x in (-oo:0) U (0:+oo)

(21*x^3*y^2)/(28*x^8*y^-5) = 0

3/4*x^-5*y^7 = 0 // : 3/4*y^7

x^-5 = 0

x należy do O

x belongs to the empty set

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