Question

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)?

Answer 1

-3a^3 + 5a^2 - 3a + 7

Explanation:

(a^3 - 2a + 5) - (4a^3 - 5a^2 + a - 2)

a^3 - 2a + 5 - 4a^3 + 5a^2 - a +2

[a^3 - 4a^3] + 5a^2 - 2a - a + 5 +2

-3a^3 + 5a^2 - 3a + 7