А·(8-9а)+40=(6-3а)(6+3а)

Question

А·(8-9а)+40=(6-3а)(6+3а)

Answer 1

A•(8-9a)+40=(6-3a)(6+3a)
8a-9a2+40(36-9a2)
8a-9a2+1440-360a2
8a-369a2+1440
-369a2+8a+1440