Question

help me to solve this ques

Answer 1

( 8! - 7! ) / 6!

= ( 6! × 7 × 8 - 6! × 7 ) / 6!

= 6! ( 56 - 7 ) / 6!

= 49

Answer 2

(8! - 7!)/6!
=( 8×7×6! - 7×6!)/ 6!
= 6!/6! ×(56-7)
= 49