document.write( "Question 1098110: Use the Commutative Property of Multiplication and the Associative Property of Multiplication to show the Power of a Product Property (a * b)^n = a^n * b^n is true. \n" ); document.write( "
Algebra.Com's Answer #837087 by math_tutor2020(3835) ![]() You can put this solution on YOUR website! \n" ); document.write( "The expression (a * b)^n means we have n copies of (a*b) multiplied together, where n is a positive integer.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let's say for example we have (a*b)^3 \n" ); document.write( "That leads to 3 copies of (a*b) multiplied \n" ); document.write( "(a*b)^3 = (a*b)*(a*b)*(a*b)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Then use the commutative property of multiplication \n" ); document.write( "a*b = b*a\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So, \n" ); document.write( "(a*b)*(a*b)*(a*b) \n" ); document.write( "is the same as \n" ); document.write( "(a*b)*(b*a)*(a*b)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Then we use the associative property of multiplication \n" ); document.write( "(a*b)*(b*a)*(a*b) \n" ); document.write( "becomes \n" ); document.write( "a*(b*b)*a*(a*b)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Use the associative and commutative properties to rearrange terms so that we end up with \n" ); document.write( "(a*a*a)*(b*b*b) \n" ); document.write( "that condenses down into \n" ); document.write( "a^3*b^3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This example shows that (a*b)^3 = a^3*b^3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This can be extended more generally to (a*b)^n = a^n*b^n \n" ); document.write( " \n" ); document.write( " |