4/9x^2-100=0

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Solution for 4/9x^2-100=0 equation: 


x in (-oo:+oo)

(4/9)*x^2-100 = 0

4/9*x^2 = 100 // : 4/9

x^2 = 225

x^2 = 225 // ^ 1/2

abs(x) = 15

x = 15 or x = -15

x in { 15, -15 }

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