14=432/a^2

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Solution for 14=432/a^2 equation: 


D( a )

a^2 = 0

a^2 = 0

a^2 = 0

1*a^2 = 0 // : 1

a^2 = 0

a = 0

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

14 = 432/(a^2) // - 432/(a^2)

14-(432/(a^2)) = 0

14-432*a^-2 = 0

-432*a^-2 = -14 // : -432

a^-2 = 7/216

-2 < 0

1/(a^2) = 7/216 // * a^2

1 = 7/216*a^2 // : 7/216

216/7 = a^2

a^2 = 216/7 // ^ 1/2

abs(a) = (216/7)^(1/2)

a = (216/7)^(1/2) or a = -(216/7)^(1/2)

a in { (216/7)^(1/2), -(216/7)^(1/2) }

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