What does simplifying mean:
Simplify means collecting the same terms together(like terms)..
Be careful because, ab = a×b and ba = b×a so infact ab = ba.
i.e. 2ab + 3ba = 5ab (or 5ba)
i.e a2b + ba2= 2a2b
Mark out those things that are the same, including their + or – sign, then add or subtract.
In the example below only the ab’s can be added. The other terms are different.
Simplify the following:
1. 3x + 2y + x – 3y =
2. 3xy2 + 2y + 4xy2=
3. 4x2 + 2x – 5x2 =