Odpowiedź:
[tex]2. \frac{ - 2 + 8 \times ( - 4)}{( - 3 {)}^{2} - 64 \div 8 } = \frac{ - 2 + ( - 32)}{9 - 8} = \frac{ - 34}{1} = - 34[/tex]
[tex]3.( - 2.4) \div (1 \frac{1}{3} \times 1 \frac{3}{4} - \frac{1}{3}) = ( - 2.4) \div ( \frac{4}{3} \times \frac{7}{4} - \frac{1}{3} ) = ( - 2.4) \div ( \frac{7}{3} - \frac{1}{3} ) = ( - 2.4) \div \frac{6}{3} = ( - 2.4) \div 2 = - 1.2[/tex]
