Explanation:
We start by subtracting the polynomial 150+70x-x^2+0.5x^3 from 270x-3x^2.
270x - 3x^2 - (150 + 70x - x^2 + 0.5x^3)
= 270x - 3x^2 - 150 - 70x + x^2 - 0.5x^3 (distributing the negative sign)
= -0.5x^3 - 2x^2 + 200x - 150
To multiply our answer, let's assume we are multiplying by x:
-0.5x^4 - 2x^3 + 200x^2 - 150x
Therefore, the subtraction and multiplication result in:
(-0.5x^3 - 2x^2 + 200x - 150) * x = -0.5x^4 - 2x^3 + 200x^2 - 150x