document.write( "Question 1014683: x^2-1=8x
\n" ); document.write( "Enter the exact answers in increasing order. (formula) \n" ); document.write( "

Algebra.Com's Answer #631010 by skippo(9) $\"\"$ $\"About$

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$\"x%5E2-1=8x\"$
\n" ); document.write( "using method of completing the square
\n" ); document.write( " $\"x%5E2-8x=+1\"$
\n" ); document.write( "add 16 to both sides
\n" ); document.write( " $\"x%5E2-8x%2B16\"$ = $\"1+%2B16\"$
\n" ); document.write( " $\"x%5E2-8x%2B16\"$ = $\"17\"$
\n" ); document.write( " $\"%28x-4%29%5E2\"$ = $\"17\"$
\n" ); document.write( " $\"x-4\"$ = +- $\"+sqrt%2817%29\"$
\n" ); document.write( " $\"x\"$ = $\"-+sqrt%2817%29%2B4\"$ or $\"%2B+sqrt%2817%29%2B4\"$
\n" ); document.write( " $\"x\"$ = $\"-4.123%2B4\"$ or $\"4.123%2B4\"$
\n" ); document.write( " $\"x\"$ = $\"-0.123\"$ or $\"8.123\"$ \n" ); document.write( "

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