Mathematics · Algebra
Expand the following algebraic expression: (3a - 2b + 3c)2
- 14a2 + 8b2 + 6c2 + 14ab + 18bc + 12ca
- 242a2 + 80b2 + 62c2 + 4ab + 28bc + 22ca
- 38a2 + 10b2 + 6c2 + 24ab + 32bc + 16ca
- 49a2 + 4b2 + 9c2 - 12ab - 12bc + 18ca✓
Correct answer
9a2 + 4b2 + 9c2 - 12ab - 12bc + 18ca
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