Question

Jawab
1 2a/b + 2b/a
2 2x/m + 3y/n
3 x+1/x + x/1-x
4 r+8/r+1 + r+6/r+2

kalau bisa make caranya ya ka :)

Answer 1

1. 2a/b + 2b/a
   = (2a^2 + 2b^2 )/ (ab)
   = {ab ( 2a + 2b)}/ (ab)
   = (a +b)

2. 2x/m + 3y/n
   = (2xn + 3ym)/ (mn)
   
3. x + 1/x + x -x
   = x + 1/x
   = (x^2 + 1 )/ x

4. r + 8/r + 1 + r + 6/r +2
   = (r + r) + ( 8/r + 6/r) + (1 + 2)
   = 2r + 14/r + 3
   = ( 2r^2 + 14 + 3r)/r
   = (2r^2 + 3r + 14)/ r