Mathematics
Expand (5a - 3b + c)2
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Answer
Given,
⇒ (5a - 3b + c)2
Expanding,
⇒ (5a - 3b + c)(5a - 3b + c)
⇒ (5a)2 - 15ab + 5ac - 15ab + 9b2 - 3bc + 5ac - 3bc + c2
⇒ 25a2 + 9b2 + c2 - 30ab - 6bc + 10ac.
Hence, (5a - 3b + c)2 = 25a2 + 9b2 + c2 - 30ab - 6bc + 10ac.
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