7t-t^2=12/5

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Solution for 7t-t^2=12/5 equation: 


t in (-oo:+oo)

7*t-t^2 = 12/5 // - 12/5

7*t-t^2-(12/5) = 0

7*t-t^2-12/5 = 0

7*t-t^2-12/5 = 0

DELTA = 7^2-(-12/5*(-1)*4)

DELTA = 197/5

DELTA > 0

t = ((197/5)^(1/2)-7)/(-1*2) or t = (-(197/5)^(1/2)-7)/(-1*2)

t = ((197/5)^(1/2)-7)/(-2) or t = ((197/5)^(1/2)+7)/2

t in { ((197/5)^(1/2)-7)/(-2), ((197/5)^(1/2)+7)/2 }

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