document.write( "Question 2587: do u add the exponents? solve.
\n" ); document.write( " a^2+ b^2
\n" ); document.write( "+2a^2-4b^2
\n" ); document.write( "----------
\n" ); document.write( " ???
\n" ); document.write( "thanks!!!
\n" ); document.write( "

Algebra.Com's Answer #1109 by longjonsilver(2297)\"\" \"About 
You can put this solution on YOUR website!
NO YOU DO NOT!!!!!\r
\n" ); document.write( "\n" ); document.write( "think of any variable just like all others...a, b^2, x^3y^5...these 3 variables all follow the same basic rules of algebra.\r
\n" ); document.write( "\n" ); document.write( "In your example, how many \"a^2\" terms are there? there are 1 and 2..so a total of 3a^2.\r
\n" ); document.write( "\n" ); document.write( "How many b^2 terms are there? there are 1 and -4... so a total of -3b^2 terms.\r
\n" ); document.write( "\n" ); document.write( "This is far far far easier than students make it, with their a^2 + 2a^2 = 3a^4 rubbish.\r
\n" ); document.write( "\n" ); document.write( "Hope this helps\r
\n" ); document.write( "\n" ); document.write( "jon
\n" ); document.write( "
\n" ); document.write( "
\n" );