Find the constant term in the expansion of (2z - 1/sqrt(z))*5*(z - 1/sqrt(z))^3.
Pull terms out from under the radical, assuming positive real numbers.
10z4−35z2√z+45z−25√zz+5z210�4-35�2�+45�-25��+5�2
answer: 0
+1348 
+4 
