document.write( "Question 1122533: 1. The nth term of a sequence is given by the formula: n/2(3n^2+1), find the 6th terms.\r
\n" ); document.write( "\n" ); document.write( "2. The nth term of a sequence is denoted by 3n(2^n-1), find the sum of the first 5 terms\r
\n" ); document.write( "\n" ); document.write( "3. What is the value of X for which the expression is not defined: 2x+3/x2-16?
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Algebra.Com's Answer #844501 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "About the third question, which the other tutor didn't address in her response....

\n" ); document.write( "The real response to that question is that \"X\" does not appear in the given expression \"2x+3/x2-16\", so the question makes no sense.

\n" ); document.write( "In working a problem using algebra, X and x can represent two different numbers.

\n" ); document.write( "If we assume X and x are supposed to be the same number, then the answer to the question is not what you were expecting.

\n" ); document.write( "\"2x+3/x2-16\" --> \"2x%2B3%2Fx2-16\"

\n" ); document.write( "In that expression, the expression is not defined when the denominator of the fraction is 0, which is when x=0.

\n" ); document.write( "ANSWER: 0

\n" ); document.write( "But that is undoubtedly not the answer you were looking for, because you didn't show the expression correctly.

\n" ); document.write( "The careful use of parentheses is important in algebra. It's almost certain that the expression you wanted is \"(2x+3)/(x2-16)\" --> \"%282x%2B3%29%2F%28x2-16%29\".

\n" ); document.write( "Of course the answer to that question is completely different.

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