Question

1. (a + b)³ =
2. (x + a) (x + b) =
3. x³ + y³ =

Answer 1

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1. (a + b)³ = (a^3-3a^2b+3ab^2-b^3 )
2. (x + a) (x + b) = x^2+(a+b)x+ab
3. x³ + y³ =(x + y) (x^2 − xy + y^2 ).

Answer 2

Answer:

Please Go through the answer below.....

Step-by-step explanation:

1. (a+b)³= a³ + 3a²b + 3ab² + b³ (OR) a³ + 3ab(a+b) + b³

2. (x + a) (x + b) = x² + x(a+b) + ab

3. x³ + y³ = ( x + y) (x² - xy + y²)

You can go through all the formulas once..

We Use the method of Factorisation....