1-8n+16n² factorise
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Answer:
(4n-1)²
Step-by-step explanation:
16n² - 8n + 1
- it is in the form of a² - 2×a×b + b² = (a - b)²
- a = 4n
- b = 1
= (4n)² - 2 × 4n × 1 + 1²
= 16n² - 8n + 1
= (4n - 1)²
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