Simplify the sum. (2u3 + 6u2 + 3) + (2u3 – 7u + 6)
A.
9-74 + 642 + 403
03 + 62 - 7 + 9
Ou3 - 742 + 60-9
403 + 642 - 74 + 9

4u^3 + 6u^2 - 7u + 9

Step-by-step explanation:

(2u3 + 6u2 + 3) + (2u3 – 7u + 6)

Remove the brackets.

2u^3 + 6u^2 + 3 + 2u^3 - 7u + 6

2u^3 + 2u^3 = 4u^3

6u^2

- 7u

3 + 6 = 9

Now just read down

4u^3 + 6u^2 - 7u + 9

The answers don't seem to connect with the question. Is U equal to something?

lol

step-by-step explanation:

no because after the troops were pulled many blacks were killed by hangings lynchings and other cruel ways which in a way interrupted the reconstruction of the south and differed from the way abraham lincoln had an idea of reconstruction