Question

Choose the correct simplification of (3a^2 + 8a − 4) + (5a^2 − 4).

Answer 1

8a^2 + 8a

−2a^2 + 8a

8a^2 + 8a − 8

−2a^2 + 8a − 8

Answer 2

Those are the choices. :/

Answer 3

first take away the parentheses and combine like terms
3a^2 + 8a -4 + 5a^2 -4 = 8a^2 +8a -8

Answer 4

ohhhhh. okay its that simple? thats all you have to do? :o

Answer 5

yup, not much you can do with it if those are your choices. it's just a matter of keeping the signs where they are. the other choices would be true if you had a negative in front of the parentheses or something