Question

2 x 10´5 x 3,2 x 10´8

Answer 1

→Lembrete:

$10^a\cdot 10^b=10^{\left(a+b\right)}$
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$\left(2\cdot 10^5\right)\cdot \left(3,2\cdot 10^8\right)\\\left(2\cdot 3,2\right)\cdot 10^{\left(5+8\right)}\\\boxed{\bold{6,4\cdot 10^{13}}}$