Question

Jennifer wrote the expression: (2x3 + 3x2 + 2x – 4) – (x3 – 2x2 – x – 1). What is the simplified form of this expression?

Answer 1

We have

2x³+3x²+2x-4-(x³-2x²-x-1). Using the distributive property, we get
2x³+3x²+2x-4-x³+2x²+x+1
Adding and subtracting like terms (e.g. x³+3x³=4x³), we get
x³+5x²+3x+3