x^2-7x=49/4

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Solution for x^2-7x=49/4 equation: 


x in (-oo:+oo)

x^2-(7*x) = 49/4 // - 49/4

x^2-(7*x)-(49/4) = 0

x^2-7*x-49/4 = 0

x^2-7*x-49/4 = 0

DELTA = (-7)^2-(-49/4*1*4)

DELTA = 98

DELTA > 0

x = (98^(1/2)+7)/(1*2) or x = (7-98^(1/2))/(1*2)

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

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

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