Question

Alguien que me ayude

Answer 1

a)

$= - (2 \times {10}^{31} ) \times (3 \times {10}^{16} ) \\ = - 2 \times 3 \times {10}^{31 + 16} \\ = - 6 \times {10}^{47}$

b)

$= (2.4 \times {10}^{8} ) \div (2 \times {10}^{5} ) \\ = \frac{2.4}{2} \times {10}^{8 - 5} \\ = 1.2 \times {10}^{3}$