Odpowiedź:
zad. 1
[tex]a) {a}^{2} + b = {8}^{2} + ( - 8) = 64 - 8 = 56 \\ b)a \div b = 3 \frac{1}{9} \div 4 \frac{2}{3} = \frac{28}{9} \div \frac{14}{3} = \frac{28}{9} \times \frac{3}{18} = \frac{2}{3} \\ c) {a}^{3} - b = ( - 0.1 {)}^{3} - 1 = - 0.001 - 1 = - 0.999 \\ [/tex]
zad. 2
[tex]a)6 {x}^{3} yz = 6 \times ( \frac{1}{2} {)}^{3} \times ( - \frac{3}{4} ) \times ( - \frac{2}{3} ) = 6 \times \frac{1}{8} \times \frac{1}{2} = \frac{6}{18} \times \frac{3}{8} \\ b) - 2 \frac{1}{3} \times (1 \frac{1}{2} {)}^{2} \times ( - 3.2) = - \frac{7}{3} \times ( \frac{3}{2} {)}^{2} \times ( - \frac{32}{10} ) = - \frac{7}{3} \times \frac{9}{4} \times ( - \frac{32}{10} ) = \frac{168}{10} = 16.8 \\ c)2 \times ( - 2 {)}^{4} \times ( - \frac{1}{8} ) \times ( - 1 {)}^{5} = 2 \times 16 \times ( - \frac{1}{8} ) \times ( - 1) = 32 \times \frac{1}{8} = 4[/tex]
