A
B
C
D
Explanation
Correct answer: A.
Choice A is correct. The given expression can be rewritten as , which is equivalent to , or .
Desmos solution:
Note: Multiply the coefficients 8 and 7 to get 56, and add the exponents of y and z to get y^2 and z^2.
Enter in Desmos:
Reviewed and rewritten by CookSAT
Why the other choices are wrong
Choice B
Choice B is incorrect. This expression is equivalent to .
Choice C
Choice C is incorrect. This expression is equivalent to .
Choice D
Choice D is incorrect and may result from conceptual or calculation errors.