Question

factorise a^3 + b^3 =​

Answer 1

Answer:

(a + b) ( a² -ab +b²)

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

An expression of the form a3 + b3 is called a sum of cubes. The factored form of a3 + b3 is (a + b)(a2 - ab + b2): (a + b)(a2 - ab + b2) = a3 + a2b - a2b - ab2 + ab2 + b3 = a3 - b3. For example, the factored form of 64x3 + 125 (a = 4x, b = 5) is (4x + 5)(16x2 - 20x + 25).

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