document.write( "Question 714628: I really need help.
\n" ); document.write( "If (y^a * y^a)^3 = (y)^a-4, what is the value of a?\r
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Algebra.Com's Answer #438910 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "\"%28y%5Ea+%2A+y%5Ea%29%5E3+=+y%5E%28a-4%29\"\r
\n" ); document.write( "\n" ); document.write( "\"%28y%5E%28a%2Ba%29%29%5E3+=+y%5E%28a-4%29\"\r
\n" ); document.write( "\n" ); document.write( "\"%28y%5E%282a%29%29%5E3+=+y%5E%28a-4%29\"\r
\n" ); document.write( "\n" ); document.write( "\"%28y%5E%282a%29%2A3%29+=+y%5E%28a-4%29\"\r
\n" ); document.write( "\n" ); document.write( "\"y%5E%286a%29+=+y%5E%28a-4%29\".....if the bases equal, exponents are equal too; so, we have\r
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\n" ); document.write( "\n" ); document.write( "\"6a+=+a-4\"...solve for \"a\"\r
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\n" ); document.write( "\n" ); document.write( "\"6a-a+=+-4\"\r
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\n" ); document.write( "\n" ); document.write( "\"5a+=+-4\"\r
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\n" ); document.write( "\n" ); document.write( "\"a+=+-4%2F5\"\r
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