Difficulty: Medium
Correct Answer: x^{a^2 + b^2 + c^2}
Explanation:
Given data
Concept / Approach
Step-by-step exponent aggregation
Exponent of x = b(b + c − a) + c(c + a − b) + a(a + b − c)= b^2 + bc − ab + c^2 + ca − bc + a^2 + ab − acCross terms cancel: (bc − bc), (−ab + ab), (ca − ac) ⇒ remaining = a^2 + b^2 + c^2.
Verification
Pick a = 1, b = 2, c = 3: exponent sum = 1 + 4 + 9 = 14; numeric expansion confirms.
Common pitfalls
Final Answer
Simplified form: x^{a^2 + b^2 + c^2}.
Discussion & Comments