Question

Davis subtracted two polynomials as shown. Identify/explain David's error and correct it. Show work for full credit.

Answer 1

Below

Explanation:

p^2 + 7mp + 4 - (-2p^2 - mp +1) =

(p^2 + 2p^2) + ( 7mp + mp) + ( 4 - 1) <==== two errors made here

3p^2 + 8mp + 3