document.write( "Question 1035632: Which expressions are equivalent to the one below? Check all that apply.
\n" ); document.write( "81^x\r
\n" ); document.write( "\n" ); document.write( "a. 9^2*9^x
\n" ); document.write( "b. 9*9^x
\n" ); document.write( "c.9^x*9^x
\n" ); document.write( "d.9^2x
\n" ); document.write( "e. 9*9^2x
\n" ); document.write( "f.(9*9)^x
\n" ); document.write( "Please check all that apply I'm really lost
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Algebra.Com's Answer #650281 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
Try completely factorizing the starting expression.\r
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\n" ); document.write( "\n" ); document.write( "Given: \"81%5Ex\"
\n" ); document.write( "--
\n" ); document.write( "\"%289%2A9%29%5Ex\"-----------choice f
\n" ); document.write( "\"%289%5E2%29%5Ex\"
\n" ); document.write( "\"9%5E%282x%29\"
\n" ); document.write( "\"9%5E%28x%2A2%29\"
\n" ); document.write( "\"%289%5Ex%29%289%5Ex%29\"--------choice c\r
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\n" ); document.write( "\n" ); document.write( "A certain rule of exponents is used, which goes like \"%28b%5Ex%29%5Ey=b%5E%28xy%29\".
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