1/2*2x*x=98

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Solution for 1/2*2x*x=98 equation: 


x in (-oo:+oo)

2*(1/2)*x*x = 98 // - 98

2*(1/2)*x*x-98 = 0

1*x^2 = 98 // : 1

x^2 = 98

x^2 = 98 // ^ 1/2

abs(x) = 7*2^(1/2)

x = 7*2^(1/2) or x = -(7*2^(1/2))

x in { 7*2^(1/2), -(7*2^(1/2)) }

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