Question

How do you combine `(4x^3 – 2x) + (3x^3 – 3x^2 + 1)`?

Answer 1

You can start by getting rid of the brackets as:
`4x^3-2x+3x^3-3x^2+1=`
Notice that you didn't need to change any sign;
Now collect similar terms (terms with the same type of litteral part, such as `x^3`)
`=7x^3-3x^2-2x+1`