October 2018 1 69 Report

tex1.Rozwiąż równanie: \frac{3^{5}\cdot(27^{3}-3\cdot9^{3})}{2\cdot(9^{7} - 81^{3})} = \frac{(x-3)^{2}}{\sqrt{2x}-\sqrt{8})^{2}}

2.Wiedząc, że x + y = 12 i x2 + y2 = 126, oblicz wartość iloczynu xy.

bardzo proszę o pomoc i z góry dziękuję! :D


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