Question

Did I Do This Correctly?

Answer 1

\[(2u ^{2} + 4) - (u ^{2} - 3u +7)\]

Answer 2

When I Simplified This I Got:

\[u ^{2 } - 3u - 3\]

Answer 3

The second term is off

Answer 4

Is it a positive 3u??

Answer 5

\(\color{#000000 }{ \displaystyle -(u^2-3u+7)=-(u^2)-(-3u)-(+7)=-u^2 +3u-7 }\)

Yes, exactly, 3u is positive.

Answer 6

\[(2u ^{2} + 4) - (u ^{2} -3u + 7) = u ^{2} + 3u - 3??\]

Answer 7

Yes, there you go!