(m+3)^2-(m-2)*(m+2) упростить

Question

(m+3)^2-(m-2)*(m+2) упростить

Answer 1

(m+3)²-(m-2)(m+2)=(m²+6m+9)-(m²-4)=m²+6m+9-m²+4=
=6m+13

Answer 2

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