Question

20 баллов!Разложите на множители​ 15a ∧2-5a∧2x +15ax -5ax∧2​

Answer 1

15 a^2 - 5a^x+ 15 ax - 5ax^2=
= ( 15 a^ - 5a^2 X ) +( 15 ax - 5 ax^2 ) =
+ 5a^2 ( 3 - X) + 5 ax( 3 -X ) =
= ( 3 - X) ( 5a^2 +5ax) =5 a( 3-X) ( a+X)