Question

factorise 162 m^4 - 2​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

162m^4 - 2

2(81m^4-1)

2((9m^2)^2-(1)^2)

2((9m^2+1)(9m^2-1))

2((9m^2+1)((3m)^2-(1)^2))

2((9m^2+1)(3m+1)(3m-1))

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