x=5x^2+7x+2

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Solution for x=5x^2+7x+2 equation: 



x=5x^2+7x+2

We move all terms to the left:

x-(5x^2+7x+2)=0

We get rid of parentheses

-5x^2+x-7x-2=0

We add all the numbers together, and all the variables

-5x^2-6x-2=0

a = -5; b = -6; c = -2;
Δ = b2-4ac
Δ = -62-4·(-5)·(-2)
Δ = -4
Delta is less than zero, so there is no solution for the equation

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