Question

if rootx+58/rootx=31,
then x=?

Answer 1

√x+58=31√x
58=30√x
√x=58/30
x= 2644/900= 2.9377....
hope I could help

Answer 2

√x + 58/√x = 31

√x² + 58 = 31√x

let √x = P

P² - 31P + 58 = 0

P² - 29P -2P +58 = 0

( P -29)(P -2) = 0

P = 2, 29

hence,

√x = 2, 29

x = 4 , 841