(3x^3-6x^2+x-4) - (4x^3+8x^2-5x+2).
What is the first step in simplifying this difference?
Combine like terms.
Distribute the negative to the second set of parenthesis.
Make the parenthesis one term.
Put the expression in descending order.
Distribute the negative term in the first and secind set of parenthesis.