Odpowiedź :
Zadanie 1 prawda
[tex] \sqrt{150} = \sqrt{25 \times 6} = 5 \sqrt{6} [/tex]
Zadanie 2 fałsz
[tex] \sqrt[3]{80} = \sqrt[3]{8 \times 10} = 2 \sqrt[3]{10} [/tex]
Zadanie 3 fałsz
[tex] \sqrt[3]{0.008} \times \sqrt{36} - \sqrt[3]{ - 0.064} = \frac{1}{5} \times 6 - ( - \frac{2}{5} )= \frac{6}{5} + \frac{2}{5} = \frac{8}{5} = 1.60[/tex]
Zadanie 4 fałsz
[tex] \sqrt{81} \div \sqrt[3]{ - 27} + \sqrt{400} = 9 \div - 3 + 20 = 17[/tex]