-0.421=(x-2.5)(x-2.5)

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Solution for -0.421=(x-2.5)(x-2.5) equation: 



-0.421=(x-2.5)(x-2.5)

We move all terms to the left:

-0.421-((x-2.5)(x-2.5))=0

We multiply parentheses ..

-((+x^2-2.5x-2.5x+6.25))-0.421=0



We calculate terms in parentheses: -((+x^2-2.5x-2.5x+6.25)), so:

(+x^2-2.5x-2.5x+6.25)

We get rid of parentheses

x^2-2.5x-2.5x+6.25

We add all the numbers together, and all the variables

x^2-5x+6.25

Back to the equation:

-(x^2-5x+6.25)



We get rid of parentheses

-x^2+5x-6.25-0.421=0

We add all the numbers together, and all the variables

-1x^2+5x-6.671=0

a = -1; b = 5; c = -6.671;
Δ = b2-4ac
Δ = 52-4·(-1)·(-6.671)
Δ = -1.684
Delta is less than zero, so there is no solution for the equation

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