document.write( "Question 289359: When adding polynomials, do i add the exponents together also:
\n" ); document.write( "ex:(x^2+x+1)+(2x-9x^2)=? my answer was: 3x^3-5x^2-5x
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Algebra.Com's Answer #209599 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
not even close.
\n" ); document.write( "You add the terms with like exponents.
\n" ); document.write( "So 7a^2-3a^2=4a^2
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