"EVOLt^TlON-. l6^ 



4* Involve the rcx)t to the next inferior power to that, 

 which is given, and multiply it by the number denoting 

 the given pdvv'er for a divisor. 



5. Find how many times the divisor may be had In the 

 dividend, and the quotient will be another figure of the 

 root. 



6. Involve the whole root to the given power, and sub- 

 tract it from the given number as before. 



7. Bring down the first figure of the next period to the 

 remainder for a new dividend, to which find a new divisor^ 

 pnd so on, till the whole be finished. 



EXAMPLES. 



I, "What is the cube root of 531^7376 ? 

 53i5737^(37<^ 



3*X3:^27)26i dividend. 



o-^oT 2 



50^53=37 



I I 



3* X3i:::4i 07)25043 second dividend. 

 53157376 



2. What is the biquadrate root of 19987 173376 ? 



Ans. 376 



3. Extract the sursoUd^ or fifth root, of 307682821106 

 715625. 



Ans. 3145. 



4. Extract 



