Asked by Pearl
Fully factorise
16x^36 -1
16x^36 -1
Answers
Answered by
oobleck
16x^36 - 1
= (4x^18)^2 - 1^2
= (4x^18 - 1)(4x^18 + 1)
= ((2x^9)^2 - 1^2)(4x^18 + 1)
= (2x^9 - 1)(2x^9 + 1)(4x^18 + 1)
= (4x^18)^2 - 1^2
= (4x^18 - 1)(4x^18 + 1)
= ((2x^9)^2 - 1^2)(4x^18 + 1)
= (2x^9 - 1)(2x^9 + 1)(4x^18 + 1)
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