Mathematics · Algebra
What is the expanded form of (5a + 4b + 3c)2?
- 125a2 + 16b2 + 9c2 + 40ab + 24bc + 40ac
- 225a2 + 16b2 + 9c2 + 40ab + 24bc + 30ac✓
- 325a2 + 16b2 + 9c2 + 40ab + 19bc + 30ac
- 425a2 + 16b2 + 9c2 + 44ab + 24bc + 30ac
Correct answer
25a2 + 16b2 + 9c2 + 40ab + 24bc + 30ac
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