упростите! (m-3)(m+4) - ( m+2)^2 +( 4-m)(m+4)

Question

упростите! (m-3)(m+4) - ( m+2)^2 +( 4-m)(m+4)

Answer 1

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Answer 2

m(в квадрате) +4m - 3m -12 -2m + 4 +4m +16 -m(в квадрате) -4m

-1m +8