3-n(n+0.2)=5

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Solution for 3-n(n+0.2)=5 equation: 



3-n(n+0.2)=5

We move all terms to the left:

3-n(n+0.2)-(5)=0

We add all the numbers together, and all the variables

-n(n+0.2)-2=0

We multiply parentheses

-n^2-0.2n-2=0

We add all the numbers together, and all the variables

-1n^2-0.2n-2=0

a = -1; b = -0.2; c = -2;
Δ = b2-4ac
Δ = -0.22-4·(-1)·(-2)
Δ = -7.96
Delta is less than zero, so there is no solution for the equation

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