Question

Разложите на множители 1-(b+3)^3

Answer 1

1^3 - ( b + 3)^3 = ( 1 - (b + 3))( 1 + b + 3 + b^2 + 6b +9) =
= (1 - b - 3)(b^2 + 7b + 13) = ( - b - 2)(b^2 + 7b + 13)