Answer:
6x^3 +10x^2 -11x +15
Step-by-step explanation:
2x(3x2 + 8x – 4) – 3(2x2 + x – 5)
Distribute
6x^3 + 16x^2-8x -6x^2 -3x+15
Combine like terms
6x^3 + 16x^2 -6x^2 -3x-8x+15
6x^3 +10x^2 -11x +15
Standard form is from highest to lowest power
6x^3 +10x^2 -11x +15
