(2а+3)(а-3)-2а(4-а) (1-х)(х+1)+(х-1)

Question

(2а+3)(а-3)-2а(4-а)
(1-х)(х+1)+(х-1)

Answer 1

(3а-6а+3а-9)-(8а+3а)=-9-8а-3а=-9-11а
-(х+1)^2+(х-1)