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You can put this solution on YOUR website!
\n" ); document.write( "The responses from tutor @ikleyn about this series of problem you have posted are right. Although virtually all references will call the standard form of a quadratic function
\n" ); document.write( "y=ax^2+bx+c
\n" ); document.write( "you can't just post a quadratic expression or equation and ask for the value of a, or the value of b, or the value of c.
\n" ); document.write( "So your posts are indeed defective.
\n" ); document.write( "However, your questions can be answered IF we assume you are talking about
\n" ); document.write( "y=ax^2+bx+c
\n" ); document.write( "as the standard form.
\n" ); document.write( "And to find the answers to your posts, it is usually NOT necessary to expand the entire expression. In fact, in doing that, the other tutor lost one of the factors of the given expression and so came up with the wrong answer.
\n" ); document.write( "For this problem, where you ask for the value of c (the constant term), we only need to multiply the constant factor and the constant terms in the two binomial factors:
\n" ); document.write( "c=(-2)(-1)(1) = 2
\n" ); document.write( "ANSWER: a=2
\n" ); document.write( " \n" ); document.write( "