Question

http://prntscr.com/9in4v5

Answer 1

@Astrophysics

Answer 2

Sum means you add the two, this is just like dealing with two fractions so don't let it scare you. You may apply, \[\frac{ a }{ b } \pm \frac{ c }{ d } = \frac{ ad \pm bc }{ bd } \]

Answer 3

I have put \[\pm \] as it indicates you can use this for if you are finding the sum (adding) or the difference (subtracting)

Answer 4

is my answer 1?

Answer 5

Yes! You did the algebra right? :)

Answer 6

yea

Answer 7

Thank You

Answer 8

Good! You're welcome