Question

What are the identities of algebra.??
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Answer 1

Answer:

• (x + y)2 = x2 + 2xy + y2
• (x – y)2 = x2 – 2xy + y2
• x2 – y2 = (x + y) (x – y)
• (x + a) (x + b) = x2 + (a + b)x + ab.
• (x + y + z)2 = x2 + y2 + z2 + 2xy + 2yz + 2zx.
• (x + y)3 = x3 + y3 + 3xy(x + y)
• (x – y)3 = x3 – y3 – 3xy(x – y)
• x3 + y3 + z3 – 3xyz = (x + y + z) (x2 + y2 + z2 – xy – yz – zx)

Answer 2

hey xd

there are 8 identities in Algebra

Algebraic Identity:

Identity I: (a + b)2 = a2 + 2ab + b2

Identity II: (a – b)2 = a2 – 2ab + b2

Identity III: a2 – b2= (a + b)(a – b)

Identity IV: (x + a)(x + b) = x2 + (a + b) x + ab

Identity V: (a + b + c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ca

Identity VI: (a + b)3 = a3 + b3 + 3ab (a + b)

Identity VII: (a – b)3 = a3 – b3 – 3ab (a – b)

Identity VIII: a3 + b3 + c3 – 3abc = (a + b + c)(a2 + b2 + c2 – ab – bc – ca)

Hope it's help