х³+3х²-9х-27=0
х²(х+3)-9(х+3)=0
(х+3)(х²-9)=0
х+3=0 или х²-9=0
х₁=-3; х₂=-3; х₃=3
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
х³+3х²-9х-27=0
х²(х+3)-9(х+3)=0
(х+3)(х²-9)=0
х+3=0 или х²-9=0
х₁=-3; х₂=-3; х₃=3