How do you simplify 4x^3 (x^2 -5x+4)
Use distributed property
4x^3 (x^2 -5x+4)
4x^3(x^2)+4x^3(-5x)+4x^3(4)
Note exponents are added
4(1)x^3+2+ 4(-5)x^3+1+4(4)x^3
4x^5-20x^4+16x^3