Answer: 6x³-2x²+2x Step-by-step explanation: x³-2x²-9+5x³+2x+9 Collect like terms x³+5x³-2x²+2x+9-9 = 6x³-2x²+2x Reply
Answer:
6x³-2x²+2x
Step-by-step explanation:
x³-2x²-9+5x³+2x+9
Collect like terms
x³+5x³-2x²+2x+9-9
= 6x³-2x²+2x