x(x+10)+8(x+80)=0

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Solution for x(x+10)+8(x+80)=0 equation: 



x(x+10)+8(x+80)=0

We multiply parentheses

x^2+10x+8x+640=0

We add all the numbers together, and all the variables

x^2+18x+640=0

a = 1; b = 18; c = +640;
Δ = b2-4ac
Δ = 182-4·1·640
Δ = -2236
Delta is less than zero, so there is no solution for the equation

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