document.write( "Question 129011: find two consective integers whose product is 80 \n" ); document.write( "
Algebra.Com's Answer #94330 by checkley71(8403)\"\" \"About 
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x(x+1)=80
\n" ); document.write( "x^2+x-80=0
\n" ); document.write( "using the quadratic equation we get:
\n" ); document.write( "x=8.458 or -9.458.
\n" ); document.write( "NOTE: these are not integers.
\n" ); document.write( "IF these are even integers then:
\n" ); document.write( "x(x+2)=80
\n" ); document.write( "x^2+2x-80=0
\n" ); document.write( "(x+10)(x-8)=0
\n" ); document.write( "x-8=0
\n" ); document.write( "x=8 the smaller integer.
\n" ); document.write( "8+2=10 for the next integer.
\n" ); document.write( "proof
\n" ); document.write( "8(8+2)=80
\n" ); document.write( "8*10=80
\n" ); document.write( "80=80
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