Perform the operation indicated, then place the answer in the proper location on the grid. Write your answer in descending powers of a. (a 3 - 2a + 5) - (4a 3 - 5a 2 + a - 2)

(a3 - 2a+5) - (4 a3 - 5 a2 + a-2) first, you can drop the parens around the first 3 terms. for the 2nd parens, distribute the - 1 in other words you have this a3 - 2a+5+-1⋅ (4 a3 - 5 a2 + a-2) multiply the - 1 times each term inside the parens