Question

$3 ^{ - 2} \times 10 ^{ - 7} \times 125 \\ 5 ^{ - 5} \times 6 ^{ - 6}$
please answer
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Answer 1

Step-by-step explanation:

3^-2×10^-7×125×5^-5×6^-6

=3^-2×(2×5)^-7×5^3×5^-5×(2×3)^-6

=3^-2×2^-7×5^-7×5^3×5^-5×2^-6×3^-6

=3^(-2-6)×2^(-7-6)×5^(-7+3-5)

=3^-8×2^-13×5^-9

=