Question 637582
y^3/2 -12y^1/2 +32y^-1/2 =0
=> {{{ y * sqrt(y) - 12 * sqrt(y) + 32 / sqrt(y) = 0 }}}
=> {{{y^2 - 12y + 32 =0}}}
=> {{{y^2 - 8y -4y + 32 = 0}}}
=> {{{(y-8) (y-4) = 0}}}
=> y=(8, 4)