(7x)2-x+4=0

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Solution for (7x)2-x+4=0 equation: 



(7x)2-x+4=0

We add all the numbers together, and all the variables

7x^2-1x+4=0

a = 7; b = -1; c = +4;
Δ = b2-4ac
Δ = -12-4·7·4
Δ = -111
Delta is less than zero, so there is no solution for the equation

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