Observe that for any real number x,.(a) Use this identity to express 24n+2 + 1 (n a positi...

Observe that for any real number x,

.

(a) Use this identity to express 24n+2 + 1 (n a positive integer) and 218 + 1 as the product of two integers each greater than 1.

(b) Express 236 − 1 as the product of four integers each of which is larger than 1.