To simplify this expression, we first need to combine like terms within the parentheses and then distribute the 5x to the resulting expression.
First, simplify the expression inside the parentheses:3x - 2x - 15x(4-x)= 3x - 2x - 60x + 15x^2= x - 60x + 15x^2= x - 60x + 15x^2
Now, distribute the 5x to the simplified expression:5x(x - 60x + 15x^2)= 5x^2 - 300x^2 + 75x^3
Finally, add 140 to the result:5x^2 - 300x^2 + 75x^3 + 140
So, the simplified expression is:75x^3 - 295x^2 + 140
To simplify this expression, we first need to combine like terms within the parentheses and then distribute the 5x to the resulting expression.
First, simplify the expression inside the parentheses:
3x - 2x - 15x(4-x)
= 3x - 2x - 60x + 15x^2
= x - 60x + 15x^2
= x - 60x + 15x^2
Now, distribute the 5x to the simplified expression:
5x(x - 60x + 15x^2)
= 5x^2 - 300x^2 + 75x^3
Finally, add 140 to the result:
5x^2 - 300x^2 + 75x^3 + 140
So, the simplified expression is:
75x^3 - 295x^2 + 140