Question

One of the factors of (9x 2 -1)-(1+3x) 2 is (a)3+x (b)3-x (c)3x-1 (d)3x+1

Answer 1

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)
answer (d)

Answer 2

Answer:

Step-by-step explanation:

For the answer see this attachment

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