Perform the indicated operations and simplify. (Note: The answers should have no negative exponents)
1) (3mn^2 + 2mn - 3m^2n^2) - (3m^2n - 6mn^2) - (m^2n - 6m^2n^2)
2) 2x (A+B)y - (A+B)y^2 / 8(A+B)
First thing you want to do is distrubute those negatives signs...doing that, you'll get
Now, you should group like terms...m squared, n squareds go together, m squared ns should go together...so on
Now, combine like terms
gets
Now, about this. Is this supposed to be
2) 2x (A+B)y - (A+B)y^2 / 8(A+B)
or
?? Can't tell by the way you wrote it...