F(2)=3x^2+7

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Solution for F(2)=3x^2+7 equation: 



(2)=3F^2+7

We move all terms to the left:

(2)-(3F^2+7)=0

We get rid of parentheses

-3F^2-7+2=0

We add all the numbers together, and all the variables

-3F^2-5=0

a = -3; b = 0; c = -5;
Δ = b2-4ac
Δ = 02-4·(-3)·(-5)
Δ = -60
Delta is less than zero, so there is no solution for the equation

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