Question

rezolvati ecuatia
$x \times \frac{x - 2}{3} - \frac{1}{9} \times (x - 4) {}^{2} - 6 = ( \frac{x \sqrt{2} }{3} - 1.(3)) \times ( \frac{x \sqrt{2} }{3} + 1.(3))$
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Answer 1

Am transformat fractia zecimala periodica in fractie ordinara, dupa care am aplicat formulele de calcul prescurtat si am efectuat calculele, aflandu-l pe x.