How can i solve equation with backslash?

Y = A/x + B*exp(-2x^2)

How do I set up the normal equations for this to solve for a and b using backslash?

Answer 1

[Walter Roberson]

Create

   M = [1./x(:), exp(-2.*x(:).^2)]

now solve M*[a;b] = Y using the backslash operator