m = =-2; 6) 2-х³, если x = -1; x = 0,5; x = -. 242. Найдите значение выражения: a) m² - 3 если т = -1;

а) m = -1;

m² - \(\frac{2}{3}\) = (-1)² - \(\frac{2}{3}\) = 1 - \(\frac{2}{3}\) = \(\frac{1}{3}\)

б) m = -\(\frac{2}{9}\);

2 - x³

2 - (-1)³ = 2 - (-1) = 2 + 1 = 3

в) x = 0,5 = \(\frac{1}{2}\);

2 - (\(\frac{1}{2}\))³ = 2 - \(\frac{1}{8}\) = 1\(\frac{8}{8}\) - \(\frac{1}{8}\) = 1\(\frac{7}{8}\) = 1,875

г) x = -\(\frac{2}{3}\);

2 - x³

2 - (-\(\frac{2}{3}\))³ = 2 - (-\(\frac{8}{27}\)) = 2 + \(\frac{8}{27}\) = 2\(\frac{8}{27}\)