(2a+1)(2a+1)=0

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Solution for (2a+1)(2a+1)=0 equation: 



(2a+1)(2a+1)=0

We multiply parentheses ..

(+4a^2+2a+2a+1)=0

We get rid of parentheses

4a^2+2a+2a+1=0

We add all the numbers together, and all the variables

4a^2+4a+1=0

a = 4; b = 4; c = +1;
Δ = b2-4ac
Δ = 42-4·4·1
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$a=\frac{-b}{2a}=\frac{-4}{8}=-1/2$

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