Question

Add. (3c^2 – 6c – 1) + (5c^2 + 12c + 4)

Answers: 8c^2 + 6c – 3
8c^2 – 6c + 3
8c^2 – 6c – 3
8c^2 + 6c + 3

Answer 1

Just add like with like. For example:
\[2x ^{2} + 5x ^{2} = 7x ^{2}\]
\[3y + 2y = 5y\]

Answer 2

8c^2=6c=3 by laws of additive distribution

Answer 3

I hope those were meant to be + signs Carmen :P ha

Answer 4

Yes it was meant to be a + I rush with easy math