Question

упростите выражение 4n(8-2n)+(4+n)(4-n)

Answer 1

раскроем скобки:
(32n-8n^2+16-n^2)=32n-9n^2+16

Answer 2

(32n-8n^2) + (16-n^2)= 32n-8n^2+16-n^2=32n-9n^2+16.