a)
[tex](3 \times {10}^{5} ) \times (3 \times {10}^{6} )[/tex]
[tex](3 \times 3) \times ( {10}^{5} \times {10}^{6} )[/tex]
[tex]9 \times {10}^{5 + 6} [/tex]
[tex]9 \times {10}^{11} [/tex]
Olá
(3×10⁵)(3×10⁶)
(3×10⁵)= 300000
3×10⁵
3×100000
300000
(3×10⁶)
3×10⁶
3×000000
___________
3000000
+300000
----------------
3300000
Espero ter ajudado
