Evaluate :

`8 times b times b times b times a times a times a times a`

Evaluate : 13 times 13 times 13 times a times a times a times a times a times b times b times b times b

Evaluate : b times b times b times b

Evaluate : a times b times a times b times c times c times c

Evaluate : a times a times a times b times b times c times c times c times c

Evaluate : ( c )   x times x times x times x times a times a times b times b times b ( d ) ( -2 ) times ( -2 ) times ( -2 ) times ( -2 ) times a times a times a

a times a times a times b times b times c times c times c times c times c

Evaluate : a times b times c times ( -d ) times (-e ) times (-f )

Evaluate : A times [ ( A times B ) times A ]

Write the following in the exponential form: (a) b times b times b times...10 times (b) y times y times...15 times (c) 9times a times a times a times b times b times b times b times b (d) 18 times xtimesxtimesytimesytimesy

Evaluate : ( b times c ) times ( c times a )