(4.32X)/(2.5X^3)=26.66

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Solution for (4.32X)/(2.5X^3)=26.66 equation: 


D( X )

2.5*X^3 = 0

2.5*X^3 = 0

2.5*X^3 = 0

2.5*X^3 = 0 // : 2.5

X^3 = 0

X = 0

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

(4.32*X)/(2.5*X^3) <= 26.66 // - 26.66

(4.32*X)/(2.5*X^3)-26.66 <= 0

1.728*X^-2 <= 26.66

1.728*X^-2 <= 26.66 // : 1.728

X^-2 <= 26.66/1.728

X^-2 <= 15.42824074

1/(X^2) <= 15.42824074

X <> 0

1/(X^2) <= 15.42824074 // * X^4

(X^4)/(X^2) <= 15.42824074*X^4

X^2 <= 15.42824074*X^4

X^2-15.42824074*X^4 <= 0

X^2*(1-15.42824074*X^2) <= 0

X^2*(1-15.42824074*X^2) <= 0 // : X^2

1-15.42824074*X^2 <= 0

1 <= 15.42824074*X^2 // : 15.42824074

1/15.42824074 <= X^2

X^2 >= 1/15.42824074 // ^ 1/2

abs(X) >= 0.0648162^(1/2)

X in (-oo:-0.0648162^(1/2)> U <0.0648162^(1/2):+oo)

X in (-oo:-0.0648162^(1/2)> U <0.0648162^(1/2):+oo)

(-oo:-0.0648162^(1/2)> U <0.0648162^(1/2):+oo)

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