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Answer:
C. (b - c)(a + b)
Explanation:
A = (b - c)(a - c)
A = ba - bc - ac - c² ≠ ab + b² - ac - bc
B = (b + a)(b + c)
B = b² + bc + ab + ac ≠ ab + b² - ac - bc
C = (b - c)(a + b)
C = ba + b² - ca - cb
= ab + b² - ac - bc
→ That is answer C
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