Which are the like terms in 5x3 + 3x2 – x + x3?


5x3and x3


5x3and 3x2


5x3, 3x2, and x3

They are all like terms.




2. Simplify:



4x3 – 3x2 + x + 3x3



7x6– 3x2+ x


4x3– 3x2+ x + 3x3 (the expression cannot be simplified)


7x3– 3x2+ x


5y3




3. Simplify: 6y + 5z + 8y – 3z


11y + 5z


14y + 2z


14y + 8z


16yz