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January 25th, 2010, 01:25 PM  #1 
Newbie Joined: Jan 2010 Posts: 1 Thanks: 0  need help with laws of indices
my book says to remove the brackets from (x3 y7)4 (x to the power of 3, y to the power of 7, and to the power of four outside the brackets, all numerals small) Can anyone help? 
January 25th, 2010, 02:17 PM  #2 
Global Moderator Joined: Dec 2006 Posts: 19,183 Thanks: 1647  Multiply exponents. To illustrate, (x³)² = ((x)(x)(x))² = ((x)(x)(x))((x)(x)(x)) = x^6.


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