Question

-2b(b²+2b-3
помогите пж​

Answer 1

$- 2b(b {}^{2} + 2b - 3) = - 2b \times b {}^{2} - 2b \times 2b - 2b \times ( - 3) = - 2b {}^{3} - 4b {}^{2} + 6b$