Question

factorise a³ + 8 = (a+2)​

Answer 1

Answer:

a = −2, 1+i√2,1−i√2

Step-by-step explanation:

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Answer 2

Answer:

(a+2)(a²+a+2)

Step-by-step explanation:

a³+8 = (a+2)

or, (a)³ + (2)³ = (a+2)

or, (a+2)(a²+2a+4) - (a+2) = 0

or, (a+2)(a²+2a+4-a-2)

or, (a+2)(a²+a+2)