Question

24r^(3)s^(2)+30r^(2)s^(2)-42r^(2)s^(3)
6r^(2)s^(2)
i need step by step work shown

Answer 1

I think you left out a sign in front of the last term; it should be either a plus or minus sign in front of the last term. I assumed here that it is a plus sign.\[24r^3s^2+30r^2s^2-42r^2s^3+ 6r^2s^2=18r^2s^2\]Note the common factors that allow us to combine all the terms.