T(x)=3x2+75

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Solution for T(x)=3x2+75 equation: 



(T)=3T^2+75

We move all terms to the left:

(T)-(3T^2+75)=0

We get rid of parentheses

-3T^2+T-75=0

a = -3; b = 1; c = -75;
Δ = b2-4ac
Δ = 12-4·(-3)·(-75)
Δ = -899
Delta is less than zero, so there is no solution for the equation

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