Question

Name the identities used in algebra

Answer 1

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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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Answer 2

Answer:

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)