document.write( "Question 157033: 5. As much as I try, I still need to see what's before me in order to understand the idea of solving with Factoring. How would I do this problem? What is the answer when solved with factoring? Thank you so much.\r
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\n" ); document.write( "\n" ); document.write( "3x^2 + 6x = 2x^2 - 9 \n" ); document.write( "

Algebra.Com's Answer #115789 by jojo14344(1513) $\"\"$ $\"About$

You can put this solution on YOUR website!
Equate the equation to zero by combining all terms to one side:
\n" ); document.write( " $\"3x%5E2+%2B+6x+=+2x%5E2+-+9\"$ -------------> working eqn
\n" ); document.write( " $\"3x%5E2%2B6x-2x%5E2%2B9=0\"$ , do the operations (add or subtract)
\n" ); document.write( " $\"x%5E2%2B6x%2B9=0\"$ , factor out since it's a perfect square
\n" ); document.write( " $\"%28x%2B3%29%28x%2B3%29=0\"$ ---------> final answer
\n" ); document.write( "To check, subsitute $\"x=-3\"$ to your working eqn:
\n" ); document.write( " $\"3%28-3%29%5E2%2B%286%29%28-3%29=2%28-3%29%5E2-9\"$
\n" ); document.write( " $\"%283%29%289%29-18=18-9\"$
\n" ); document.write( " $\"27-18=18-9\"$
\n" ); document.write( " $\"9=9\"$
\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo \n" ); document.write( "

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