Question

Помогите пж умоляю срочно
(m+4)²-4(m+1)²

Answer 1

(m+4)²-4(m+1)² = m^2+8m+16-4m^2-8m-4=-3m^2+12

Answer 2

(m+4)²-4(m+1)²=m²+8m+16-4(m²+2m+1)=m²+8m+16-4m²-8m-4=-3m²+12