-42x^6+42x^4-49x^2/-7x^4

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Solution for -42x^6+42x^4-49x^2/-7x^4 equation: 


x in (-oo:+oo)

42*x^4-42*x^6-(((49*x^2)/(-7))*x^4) = 0

7*x^6-42*x^6+42*x^4 = 0

42*x^4-35*x^6 = 0

7*x^4*(6-5*x^2) = 0

-5*x^2 = -6 // : -5

x^2 = 6/5

x^2 = 6/5 // ^ 1/2

abs(x) = (6/5)^(1/2)

x = (6/5)^(1/2) or x = -(6/5)^(1/2)

7*x^4 = 0

7*x^4 = 0 // : 7

x^4 = 0

x = 0

x in { (6/5)^(1/2), -(6/5)^(1/2), 0 }

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