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0.6x^2+3.6x+0.6=(3+0.6x)(1+x)
We move all terms to the left:
0.6x^2+3.6x+0.6-((3+0.6x)(1+x))=0
We add all the numbers together, and all the variables
0.6x^2+3.6x-((0.6x+3)(x+1))+0.6=0
We multiply parentheses ..
0.6x^2-((+0x^2+0x+3x+3))+3.6x+0.6=0
We calculate terms in parentheses: -((+0x^2+0x+3x+3)), so:We add all the numbers together, and all the variables
(+0x^2+0x+3x+3)
We get rid of parentheses
0x^2+0x+3x+3
We add all the numbers together, and all the variables
x^2+4x+3
Back to the equation:
-(x^2+4x+3)
0.6x^2+3.6x-(x^2+4x+3)+0.6=0
We get rid of parentheses
0.6x^2-x^2+3.6x-4x-3+0.6=0
We add all the numbers together, and all the variables
-0.4x^2-0.4x-2.4=0
a = -0.4; b = -0.4; c = -2.4;
Δ = b2-4ac
Δ = -0.42-4·(-0.4)·(-2.4)
Δ = -3.68
Delta is less than zero, so there is no solution for the equation
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