(3x-11)(3x-11)=0

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Solution for (3x-11)(3x-11)=0 equation: 



(3x-11)(3x-11)=0

We multiply parentheses ..

(+9x^2-33x-33x+121)=0

We get rid of parentheses

9x^2-33x-33x+121=0

We add all the numbers together, and all the variables

9x^2-66x+121=0

a = 9; b = -66; c = +121;
Δ = b2-4ac
Δ = -662-4·9·121
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{66}{18}=3+2/3$

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