Answer: -5x^4+6x^3-31+6x^5-x^2+12x | The full answer
Step-by-step explanation: When doing one of these problems that does not need you to solve for the value of _blank_ then all you need to do it add like terms. Remember that 5^2 + 5x cant be added, while 5x+5x can. only like terms work. If you need more practice look up some videos on this topic. Have a great day.