Impulse and momentum problem pool balls

[isukatphysics69]

1. Homework Statement
in picture

Homework Equations

momentum_a+momentum_b=momentum of system

The Attempt at a Solution

So i just spent 1 hour trying to solve this problem and got completely stuck when trying to solve for the angle of ball 2 in the final position i ended up with an equation ((sinx)/(cosx+1)) = -0.4 which is unsolvable.
so now i am entirely confused on what to do.

I started off by getting the components of the momentum of each ball in each direction and trying to solve for the final velocity of ball 2 which ended up requiring the final angle of ball 2 and i could not solve for the angle. i need a different approach to this problem because i am completely stuck and getting frustrated

 

[isukatphysics69]

OK I JUST FIGURED IT OUT! >=0 I MADE AN ALGEBRA MISTAKE AND IT MESSUD UP EVERYTHING