document.write( "Question 825996: The product of two consecutive numbers is 72. Use a quadratic equation to find the two sets of numbers.
\n" ); document.write( "So, (x - 8)(x-9) = 0
\n" ); document.write( "x^2 + -17 + 72 = 0
\n" ); document.write( "ax^2 + bx + c, where a = 1, b = -17 and c = 72.
\n" ); document.write( "\"Plug\" into x = b+-sqrt4ac/2a\r
\n" ); document.write( "\n" ); document.write( "I found online that:
\n" ); document.write( "-17 + sqrt(1)
\n" ); document.write( "-17 + 1 = -16/2 = -8
\n" ); document.write( "-17 - 1 = -18/2 = -9 \r
\n" ); document.write( "\n" ); document.write( "Aren't you meant to plug in all the numbers in the equation? Why am I getting decimal numbers?
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #497770 by Alan3354(69443) $\"\"$ $\"About$

You can put this solution on YOUR website!
The product of two consecutive numbers is 72. Use a quadratic equation to find the two sets of numbers.
\n" ); document.write( "So, (x - 8)(x-9) = 0 ******* You started by knowing the answer.
\n" ); document.write( "x^2 + -17 + 72 = 0
\n" ); document.write( "ax^2 + bx + c, where a = 1, b = -17 and c = 72.
\n" ); document.write( "\"Plug\" into x = b+-sqrt4ac/2a\r
\n" ); document.write( "\n" ); document.write( "I found online that:
\n" ); document.write( "-17 + sqrt(1)
\n" ); document.write( "-17 + 1 = -16/2 = -8
\n" ); document.write( "-17 - 1 = -18/2 = -9 \r
\n" ); document.write( "\n" ); document.write( "Aren't you meant to plug in all the numbers in the equation? Why am I getting decimal numbers? What decimal numbers? \n" ); document.write( "

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