Question

Write 5 identities of Polynomials?With Example​

Answer 1

Answer:

Important Polynomial Identities :

1) ( x + y ) 2 = x 2 + 2xy +y 2

2) ( x – y) 2 = x 2 – 2xy + y 2

3) (x + y)(x – y) = x 2 – y 2

4) (x + a)(x + b) = x 2 +(a + b)x + ab.

5) (x + y) 3 = x 3 + 3x 2y + 3xy 2 + y 3 = x 3 + y 3 +3xy(x +y)

6) (x - y) 3 = x 3 - 3x 2y + 3xy 2 - y 3 = x 3+ y 3 -3xy(x –y)

Answer 2

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