Question

(6u3 + 7u2 + 2) + (3u3 – 8u + 4)

Answer 1

Remove the parentheses and bring like terms together:-

=  6u3 + 3u3 + 7u2 - 8u + 2 + 4    Simplifying like terms :-

= 9u3 + 7u2 - 8u + 6

Answer 2

(6u3 + 7u2 + 2) + (3u3 – 8u + 4)
=6u³+3u³+7u²-8u+4+2
ANSWER:9u³+7u²-8u+6