Question

Factorise each of the following: 3x⁴ – 3 using identites​

Answer 1

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Answer 2

Step-by-step explanation:

3(x⁴-1)

3[(x²) ²-(1) ²]

3(x²+1) (x²-1)

we can factorise (x²-1)

(x²-1²)

(x+1) (x-1)

therefore answer is 3(x²+1)(x+1)(x-1)

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