zadanie 9
[tex]3 \times {10}^{6} [/tex]
[tex]2.5 \times {10}^{10} [/tex]
[tex]5 \times {5}^{5} [/tex]
zadanie 10
[tex] \frac{ {3}^{7} }{64} \times \frac{ {2}^{5} }{ {9}^{3} } = \frac{ {3}^{7} }{ {2}^{6} } \times \frac{ {2}^{5} }{ {( {3}^{2} )}^{3} } = \frac{ {3}^{7} }{ {2}^{6} } \times\frac{ {2}^{5} }{ {3}^{6} } = \frac{3}{2} = 1 \frac{1}{2} [/tex]
zadanie 11
[tex](3 \sqrt{50} + 2 \sqrt{8} + \sqrt{32} ) \div \sqrt{2} = (3 \sqrt{25 \times 2} + 2 \sqrt{4 \times 2} + \sqrt{16 \times 2} ) \div \sqrt{2} = \sqrt{2} (3 \sqrt{25} + 2 \sqrt{4} + \sqrt{16} ) \div \sqrt{2} = 3 \sqrt{25} + 2 \sqrt{4} + \sqrt{16} = 3 \times 5 + 2 \times 2 + 4 = 15 + 4 + 4 = 23[/tex]
zadanie 12
[tex] \sqrt{ {2}^{6} } = \sqrt{ {( {2}^{3} )}^{2} } = {2}^{3} = 8[/tex]
MAM NADZIEJE ZE POMOGLAM <3
