Question

2b(7-b)-(a+2b)(3-b) ​

Answer 1

Ответ:

8b-3a+ab

Объяснение:

2b*(7-b)-(a+2b)*(3-b) = 14b-$2b^{2}$-(3a-ab+6b-$2b^{2}$) = 14b - $2b^{2}$-3a+ab-6b+$2b^{2}$ = 8b-3a+ab