Question

Simplify the sum.

Answer 1

\[(2u ^{3} + 6u ^{2} + 3) + (2u ^{3} – 7u + 6)\]

Answer 2

is the answer D?

Answer 3

A. 9 – 7u + 6u2 + 4u3
B. 0u3 + 6u2 – 7u + 9
C. 0u3 – 7u2 + 6u – 9
D. 4u3 + 6u2 – 7u + 9

Answer 4

\[(2u ^{3} + 6u ^{2} + 3) + (2u ^{3} – 7u + 6)\]
\[=2u ^{3} + 6u ^{2} + 3 + 2u ^{3} – 7u + 6\]
\[=(2+ 2)u ^{3} + 6u ^{2} – 7u + (6+3)\]