document.write( "Question 717873: What is the result of adding -3x^2-8x+1 and 8x^2-2x-9 \n" ); document.write( "

Algebra.Com's Answer #440581 by Simnepi(216) $\"\"$ $\"About$

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add the 'like terms'
\n" ); document.write( "start with the $\"x%5E2\"$ terms
\n" ); document.write( "i.e.
\n" ); document.write( "-3+8 = +5. so we have $\"5x%5E2\"$
\n" ); document.write( "now do the x terms
\n" ); document.write( "i.e.
\n" ); document.write( "-8+-2 = -10, so we have -10x
\n" ); document.write( "and finally the constants
\n" ); document.write( "+1+-9 = -8
\n" ); document.write( "putting them all back together gives
\n" ); document.write( " $\"5x%5E2-10x-8\"$ \n" ); document.write( "

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