Question

Factorise:(9x2–1)–(1+3x)2

Answer 1

Answer:

16-2×6x

Step-by-step explanation:

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Answer 2

Answer:

3x+1

Step-by-step explanation:

first we break 9x^2-1 in (3x+1) (3x-1)

now, (3x+1)(3x-1-1-3x)

-2 (3x+1)

so factor is (3x+1)

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