Решите оч надо.......

Question

Решите оч надо.......

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Answer 1

(m+3)^2 - (m-2)(m+2) = m^2 + 6m + 9 - (m^2-4) = m^2 + 6m + 9 - m^2 + 4 = 6m + 13

(a-1)^2 - (a+1)(a-2) = a^2 - 2a + 1 - (a^2 - 2a + a - 2) = a^2 - 2a + 1 - (a^2 - a - 2) = a^2 - 2a + a^2 + a + 2 = -a + 3