Sagot :
[tex]15n^3 -6n^2 +40n-16 =\\
3n^2(5n-2)+8(5n-2)=\\
(3n^2+8)(5n-2)[/tex]
= 3n² ( 5n - 2 ) + 8 ( 5n - 2 )
= ( 5n - 2 ) ( 3n² + 8 ) Answer
= ( 5n - 2 ) ( 3n² + 8 ) Answer