Упростите выражение (m-3)^2- (m-2) (m+2)

Question

Упростите выражение (m-3)^2- (m-2) (m+2)

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

Answer 2

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