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(0.6-2x)(0.6-2x)=0
We add all the numbers together, and all the variables
(-2x+0.6)(-2x+0.6)=0
We multiply parentheses ..
(+4x^2-1.2x-1.2x+0.36)=0
We get rid of parentheses
4x^2-1.2x-1.2x+0.36=0
We add all the numbers together, and all the variables
4x^2-2.4x+0.36=0
a = 4; b = -2.4; c = +0.36;
Δ = b2-4ac
Δ = -2.42-4·4·0.36
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$x=\frac{-b}{2a}=\frac{2.4}{8}=1/3.3333333333333$
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