document.write( "Question 1180171: The function of f(x) = 3x^2+9x-3 has x-intercepts as p and q. So what is the value of p-pq+q? \n" ); document.write( "

Algebra.Com's Answer #809776 by greenestamps(13200) $\"\"$ $\"About$

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\n" ); document.write( "For the quadratic equation

\n" ); document.write( " $\"y=ax%5E2%2Bbx%2Bc\"$

\n" ); document.write( "the sum of the roots is -b/a and the product of the roots is c/a.

\n" ); document.write( "You have

\n" ); document.write( " $\"y=3x%5E2%2B9x-3\"$

\n" ); document.write( "with roots p and q.

\n" ); document.write( " $\"p%2Bq=-9%2F3=-3\"$
\n" ); document.write( " $\"pq=-3%2F3=-1\"$

\n" ); document.write( " $\"p-pq%2Bq=%28p%2Bq%29-pq=-3-%28-1%29=-2\"$

\n" ); document.write( "ANSWER: -2

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