Question

write and learn all the formulas of identities with one solved example of each​

Answer 1

Answer:

The standard algebraic identities are:

(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)

Step-by-step explanation:

The identity (x+y)2 = x2+2xy+y2 will be the same for all values of x and y.

Browse more Topics under Algebraic Expressions And Identities

Introduction to Algebraic Expressions

Operations on Algebraic Polynomials

Polynomials and Its Types

Because an identity stays the same for every value of its variables, one can substitute the terms of one side of the equation, with the terms of the other side, as shown in the example above,

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