document.write( "Question 434727: what is the value of log8 4 \n" ); document.write( "
Algebra.Com's Answer #301072 by Edwin McCravy(20060)\"\" \"About 
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document.write( "Let x = log84\r\n" );
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document.write( "Use the principle that the log equation \"A=log%28B%2CC%29\" is\r\n" );
document.write( "equivalent to the exponential equation \"B%5EA=C\"\r\n" );
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document.write( "8x = 4\r\n" );
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document.write( "Write 8 as 23 and 4 as 22\r\n" );
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document.write( "(23)x = 22\r\n" );
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document.write( "Remove the parentheses on the left by multiplying the\r\n" );
document.write( "exponent inside the parentheses, 3, by the exponent outside\r\n" );
document.write( "the parentheses x\r\n" );
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document.write( "23x = 22\r\n" );
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document.write( "Now we use the principle that if \"B%5EA=B%5EC\" and B is positive\r\n" );
document.write( "and not equal to 1, then \"A+=+C\"\r\n" );
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document.write( "3x = 2\r\n" );
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document.write( "      2\r\n" );
document.write( " x = ———\r\n" );
document.write( "      3\r\n" );
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document.write( "Edwin
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