1/2*5x*3x-1=60

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Solution for 1/2*5x*3x-1=60 equation: 


x in (-oo:+oo)

3*5*(1/2)*x*x-1 = 60 // - 60

3*5*(1/2)*x*x-60-1 = 0

15/2*x^2 = 61 // : 15/2

x^2 = 122/15

x^2 = 122/15 // ^ 1/2

abs(x) = (122/15)^(1/2)

x = (122/15)^(1/2) or x = -(122/15)^(1/2)

x in { (122/15)^(1/2), -(122/15)^(1/2) }

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