Can you check this linear equation question, cant do last part.

I cant use latex, so enjoy my crappy handwriting lol.

http://i38.tinypic.com/e6t7ac.jpg

The one you can't see says B-3/a + 4B + 8/a ¦ 2 -6/a -12 + 6/a

B = beta, a = alpha

http://i36.tinypic.com/8zmy43.jpg

I've done ii and iii wrong

ii should be RHS = 0 and LHS = 0

B = -1 alpha = 1

iii

RHS = 0 LHS ~= 0

B = 1 alpha = -1