Am trying to find the value of r

1/r + 2/1-r = 4/r^2

Question

Mathematics

Nikhil Khan

9 May, 13:41

Am trying to find the value of r

1/r + 2/1-r = 4/r^2

+2

Answers (1)

Know the Answer?

Jeffery Crawford · Answer 1

1/r + 2/1-r = 4/r^2

1-r+2r/r (1-r) = 4/r^2

(1+r) / r (1-r) = 4/r^2 cancle r both side

1+r/1-r=4/r

cross multiply

r+r^2=4-4r

r^2+4r+r-4=0

r^2+5r-4=0

r^2+4r+r-4=0

solve it for r factor it ...

Am trying to find the value of r1/r + 2/1-r = 4/r^2

Am trying to find the value of r

1/r + 2/1-r = 4/r^2