3(x+2)(x+2)=0

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Solution for 3(x+2)(x+2)=0 equation: 



3(x+2)(x+2)=0

We multiply parentheses ..

3(+x^2+2x+2x+4)=0

We multiply parentheses

3x^2+6x+6x+12=0

We add all the numbers together, and all the variables

3x^2+12x+12=0

a = 3; b = 12; c = +12;
Δ = b2-4ac
Δ = 122-4·3·12
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{-12}{6}=-2$

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