Mathematics · Algebraic Identities
If 2s = a + b + c, then what is s2 + (s - a)(s - b) + (s - b)(s - c) + (s - c)(s - a) equal to?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 13(ab + bc + ca)
- 22(ab + bc + ca)
- 3ab + bc + ca✓
- 4(a + b + c)2
Correct answer
ab + bc + ca
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