# Polymath or Matlab non-linear algebraic solver

• MATLAB
Hello,

I am having difficulty inputting a non linear algebraic equation into polymath to solve

for reference the equation is

x*(100-.5*x)^0.5/(15-x)/(20-.5 * x)^0.5 - 87.824 == 0

and I want to solve for x, but haven't gotten anything. Also I don't know how to program it into matlab. Anyone that can help?? Thank you

Staff Emeritus
fun = @(x) x.*(100-0.5.*x).^0.5./(15-x)/(20-0.5.*x).^0.5 - 87.824;