document.write( "Question 1155188: Find three consecutive integers whose product is 161 larger than the cube of the smallest integer \n" ); document.write( "
Algebra.Com's Answer #777738 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Hi
\n" ); document.write( " Let n represent the smallest integer
\n" ); document.write( "n(n+1)(n+2) = n^3- 161
\n" ); document.write( "n(n^2 + 3n + 2)= n^3- 161
\n" ); document.write( "n^3 + 3n^2 + 2n = n^3 + 161
\n" ); document.write( "3n^2 + 2n - 161 = 0
\n" ); document.write( "\"green%28n=7%29\" Integer solution
\n" ); document.write( "Integers 7 , 8 , 9
\n" ); document.write( "CHECKING our answer*** 7*8*9 = 7^3 + 161 = 504
\n" ); document.write( "Wish You the Best in your Studies.
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Solved by pluggable solver: SOLVE quadratic equation with variable
Quadratic equation \"ax%5E2%2Bbx%2Bc=0\" (in our case \"3x%5E2%2B2x%2B-161+=+0\") has the following solutons:
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\n" ); document.write( " \"x%5B12%5D+=+%28b%2B-sqrt%28+b%5E2-4ac+%29%29%2F2%5Ca\"
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\n" ); document.write( " For these solutions to exist, the discriminant \"b%5E2-4ac\" should not be a negative number.
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\n" ); document.write( " First, we need to compute the discriminant \"b%5E2-4ac\": \"b%5E2-4ac=%282%29%5E2-4%2A3%2A-161=1936\".
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\n" ); document.write( " Discriminant d=1936 is greater than zero. That means that there are two solutions: \"+x%5B12%5D+=+%28-2%2B-sqrt%28+1936+%29%29%2F2%5Ca\".
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\n" ); document.write( " \"x%5B1%5D+=+%28-%282%29%2Bsqrt%28+1936+%29%29%2F2%5C3+=+7\"
\n" ); document.write( " \"x%5B2%5D+=+%28-%282%29-sqrt%28+1936+%29%29%2F2%5C3+=+-7.66666666666667\"
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\n" ); document.write( " Quadratic expression \"3x%5E2%2B2x%2B-161\" can be factored:
\n" ); document.write( " \"3x%5E2%2B2x%2B-161+=+3%28x-7%29%2A%28x--7.66666666666667%29\"
\n" ); document.write( " Again, the answer is: 7, -7.66666666666667.\n" ); document.write( "Here's your graph:
\n" ); document.write( "\"graph%28+500%2C+500%2C+-10%2C+10%2C+-20%2C+20%2C+3%2Ax%5E2%2B2%2Ax%2B-161+%29\"
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