Name the identities used in algebra
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➡ (a + b)2 = a2 + 2ab + b. ...
➡(a – b)2 = a2 – 2ab + b. ...
➡a2 – b2 = (a + b)(a – b)
➡(x + a)(x + b) = x2 + (a + b) x + ab.
➡(a + b + c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ca.
➡(a + b)3 = a3 + b3 + 3ab (a + b)
➡(a – b)3 = a3 – b3 – 3ab (a – b)
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chandresh126:
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identities used in algebra
→ (a + b)2 = a2 + 2ab + b. ...
➡(a – b)2 = a2 – 2ab + b. ...
➡a2 – b2 = (a + b)(a – b)
➡(x + a)(x + b) = x2 + (a + b) x + ab.
➡(a + b + c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ca.
➡(a + b)3 = a3 + b3 + 3ab (a + b)
➡(a – b)3 = a3 – b3 – 3ab (a – b)
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