Rene descartes scientific method begins with which step?

i believe that the first step is to accept as true only what is indubitable i think now 'im not positive but i think

In one sense, this method is like the method of geometry that Euclid had given to the world in that one began with self-evident truths as axioms and then deduced by equally self-evident steps a set of theorems. Descartes referred to this as the “synthetic method” of doing geometry and (he had hoped) physics.

HOPE THIS HELPED!! XD

Can I have Brain? please