Question

Find the sum of the three expressions and choose the correct answer.

-2u3v + 5uv - 1

7u3v - 2u2v2

5u2v2 - uv + 6

A. 5u3v+ 3u2v2+ 4uv+ 5
B. -5u3v- 3u2v2+ 4uv+ 7
C.5u3v- 3u2v2+ 4uv- 5

Answer 1

@bcheyennehaynes , just add the three of them. Eg

a + 2b + 4c

9a - 4b +2c

-a -b -c

When you add the three expressions, you get
(1+9-1)a + (2-4-1)b + (4+2-1)c

Just follow the above example and try your problem now