document.write( "Question 45380: Find two consecutive positive integers such that the sum of their square is 85.\r
\n" ); document.write( "\n" ); document.write( "I think I start with square root of x plus the square root of x + 1 = 85.\r
\n" ); document.write( "\n" ); document.write( "If so then I don't know where to go from here.\r
\n" ); document.write( "\n" ); document.write( "Thanks for help.
\n" ); document.write( "

Algebra.Com's Answer #30118 by fractalier(6550)\"\" \"About 
You can put this solution on YOUR website!
Not quite...the setup is like this
\n" ); document.write( "x^2 + (x + 1)^2 = 85
\n" ); document.write( "(the sum of the squares)
\n" ); document.write( "Now we get
\n" ); document.write( "x^2 + x^2 + 2x + 1 = 85
\n" ); document.write( "2x^2 + 2x - 84 = 0
\n" ); document.write( "x^2 + x - 42 = 0
\n" ); document.write( "(x + 7)(x - 6) = 0
\n" ); document.write( "and
\n" ); document.write( "x = -7 or x = 6
\n" ); document.write( "but they must be positive, hence your numbers are
\n" ); document.write( "6 and 7
\n" ); document.write( "
\n" );