5x^2/7x^3+x^4

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Solution for 5x^2/7x^3+x^4 equation:


x in (-oo:+oo)

((5*x^2)/7)*x^3+x^4 = 0

5/7*x^5+x^4 = 0

x^4*(5/7*x+1) = 0

5/7*x+1 = 0 // - 1

5/7*x = -1 // : 5/7

x = -1/5/7

x = -7/5

x^4 = 0

1*x^4 = 0 // : 1

x^4 = 0

x = 0

x in { -7/5, 0 }

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