document.write( "Question 978456: Should i write a4-7a²b²+kb4 in f(a) or f(b)?
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\n" ); document.write( "because i am confused and it has 2 variables in this polynomial.
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Algebra.Com's Answer #599927 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "My calculator said it, I believe it, that settles it\r
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