A
B
C
D
Explanation
Correct answer: C.
Choice C is correct. The given expression shows subtraction of two like terms. The two terms can be subtracted as follows: , or .
Desmos solution:
Note: The listed x-values make 12x^3-5x^3 and 7x^3 print the same outputs.
Enter in Desmos:
Reviewed and rewritten by CookSAT
Why the other choices are wrong
Choice A
Choice A is incorrect and may result from conceptual or calculation errors.
Choice B
Choice B is incorrect. This is the result of adding, not subtracting, the two like terms.
Choice D
Choice D is incorrect and may result from conceptual or calculation errors.