75x^2-30x=-3

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Solution for 75x^2-30x=-3 equation: 



75x^2-30x=-3

We move all terms to the left:

75x^2-30x-(-3)=0

We add all the numbers together, and all the variables

75x^2-30x+3=0

a = 75; b = -30; c = +3;
Δ = b2-4ac
Δ = -302-4·75·3
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{30}{150}=1/5$

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