algebra
posted by Anonymous .
im subtracting
5x^4+3x^22x
5x^43x^2+9x
_______________
0x^4+x^2+7x
is this right?

yes

If this is your problem
(5x^4 + 3x^2  2x)  (5x^4  3x^2 + 9x)
Answer is
10x^4 + 6x^2  11x 
thanks

If they're not in parenthesis, the answer is 7x
Write out exactly how it is in the book.