Question

1)3a(a²-5a+1) 2)-5b(2b²-3b+2) 3)(4a³+3a²-6)·(-2a²) 4)(5x^4-4x³+2x)·(-3x³) 5)2ab·(3a²b²-2ab³+5)

Answer 1

1) 3а^3–15а^2+3а

2) –10б^3+15б^2–10б

3) –8а^5–6а^4+12а^2

4) –15х^7+12х^6–6х^4

5) 6а^3 б^3–4а^2 б^4+10аб