Question

-7mn²×3m²n answer fast
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Answer 1

-7mn²×3m²n

=

$- 21m {}^{3} n {}^{3}$

Hope it's helpful to you

Answer 2

Step-by-step explanation:

- 7mn² × 3m²n

= - 21 m^3 n^3

( or )

= - 21 ( mn )^3