document.write( "Question 414694: Find 2 consecutive 2-digit numbers whose product is 812. \n" ); document.write( "

Algebra.Com's Answer #290886 by emargo19(101) $\"\"$ $\"About$

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Let 1st number=x
\n" ); document.write( "2nd number=x+1
\n" ); document.write( " $\"x%28x%2B1%29=812\"$
\n" ); document.write( " $\"x%5E2%2Bx=812\"$
\n" ); document.write( " $\"x%5E2%2Bx-812=0\"$
\n" ); document.write( "Lets use the quadratic equation to factor the equation
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( " a=1 b=1 c=-812
\n" ); document.write( " $\"x+=+%281+%2B-+sqrt%28+1%5E2-4%2A1%2A-812+%29%29%2F%282%2A1%29+\"$
\n" ); document.write( " $\"x+=+%281+%2B-+sqrt%28+1-%28-812%294+%29%29%2F%282%29+\"$
\n" ); document.write( " $\"x+=+%281+%2B+sqrt%283249+%29%29%2F%282%29+\"$ $\"x+=+%281+-+sqrt%283249+%29%29%2F%282%29+\"$
\n" ); document.write( " $\"x+=+%281+%2B+57%29%2F%282%29+\"$ $\"x+=+%281+-+57%29%2F%282%29+\"$
\n" ); document.write( " $\"x+=+%2858%29%2F%282%29+\"$ $\"x+=+%28-56%29%2F%282%29+\"$
\n" ); document.write( " $\"x+=+29+\"$ $\"x+=+-28+\"$
\n" ); document.write( "The first number is -28 and second number is 29 \n" ); document.write( "

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