Объяснение:
(6а + 4² – (2а + 1)(4а – 3)= 36a²+48a+16-(8a²-6a+4a-3)=
=36a²+48a+16-8a²+2a+3=
=28a²+50a+19
Объяснение:
(6а + 4² – (2а + 1)(4а – 3)= 36a²+48a+16-(8a²-6a+4a-3)=
=36a²+48a+16-8a²+2a+3=
=28a²+50a+19