The expression (7m-2m2n)2, when m = -6 and n = 2, simplifies to 36.
To complete the statement (7m-2m2n)2, substitute m = -6 and n = 2:
(7(-6)-2(-6)(2)(2))^2
(-42-2(-6)(4))^2
(-42-(-48))^2
(-42+48)^2
(6)^2
36
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