(1/2)*2x*x=100

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Solution for (1/2)*2x*x=100 equation: 


x in (-oo:+oo)

2*(1/2)*x*x = 100 // - 100

2*(1/2)*x*x-100 = 0

1*x^2 = 100 // : 1

x^2 = 100

x^2 = 100 // ^ 1/2

abs(x) = 10

x = 10 or x = -10

x in { 10, -10 }

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