Question

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Answer 1

Explicación paso a paso:

a)

$725434 \\ 7 \times {10}^{5} + 2 \times {10}^{4} + 5 \times {10}^{3} + 4 \times {10}^{2} + 3 \times 10 + 4$

b)

$590793 \\ 5 \times {10}^{5} + 9 \times {10}^{4} + 7 \times {10}^{2} + 9 \times {10}^{1} + 3$