Zadanie
(x - 3) (4x + 2) = 4x² + 3
4x² + 2x - 12x - 6 = 4x² + 3 l -4x²
-10x - 6 = 3 l +6
-10x = 9 l :(-10)
[tex]x=-\frac{9}{10}=-0,9[/tex]
