POLINOMIOS

1.3x²+5X-14-8x²-12X+15

=5x²-7X+1

2. (2x²-9X+5)-(3x²+8X-10)

=2x²-9X+5-3x²-8X+10

=-x²-17X+15

3. (2m+5)-(3m²-8m+3)-(2m+10)

=2m+5-3m²+8m-3-2m-10

=-3m²+8m-8

4. - 8m(3m²+5m-3)

=-24m³-40m²+24m

5. 2ab(3a²-5a+3)

=6a³b-10a²b+6ab