Question

Add x3 + 5x3 + 3x to 6x2 - 8x3 + 8​

Answer 1

Answer:

Adding polynomials is just a matter of combining like terms, with some order of operations considerations thrown in. As long as you're careful with the "minus" signs, and don't confuse addition and multiplication, you should do fine.

There are a couple formats for adding and subtracting polynomials, and they hearken back to the two methods you learned for addition and subtract of plain numbers, back when you were in grade school. First, you learned addition "horizontally", like this:

6 + 3 = 9