Question

Выполните действия: а) (12а³-15а)-(4а-11а³),б)8b(3c-b+14)

Answer 1

а) (3а*(4а²-5))-а*(4-11а²)

3а*(4а²-5)-а*(4-11а²)

а*(3(4а²-5)-(4-11а²))

а*(12а²-15-4+11а²)

а*(23а²-19)

б) 8b*3c-8b*b+8b*14

24bc-8b²+112b