document.write( "Question 85785: A. Is the following binomial a difference of squares?
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document.write( " 9a^2 – 8b^2\r
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document.write( "B. If one-half a number is subtracted from five-sixths of the number, the difference is 6. Find the number \n" );
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Algebra.Com's Answer #61970 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! A. Is the following binomial a difference of squares? \n" ); document.write( "9a^2 – 8b^2 \n" ); document.write( "No; The coefficient of b^2, (8) is not a perfect square \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "B. If one-half a number is subtracted from five-sixths of the number, the difference is 6. Find the number \n" ); document.write( ": \n" ); document.write( "Let x = the number, then just write what it says: \n" ); document.write( ": \n" ); document.write( "\"If one-half a number is subtracted from five-sixths of the number, the difference is 6.\" \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "Get rid of the denominator, mult equation by 6 \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "leave you with: \n" ); document.write( "5x - 3(1x) = 36 \n" ); document.write( "5x - 3x = 36 \n" ); document.write( "2x = 36 \n" ); document.write( "x = 36/2 \n" ); document.write( "x = 18 \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check solution of x = 18: \n" ); document.write( " \n" ); document.write( "15 - 9 = 6 \n" ); document.write( " |