1. One of the factors of (9x2 - 1) – (1 + 3x)2, is
(a) 3 + x (b) 3 - x
(C) 3x - 1
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Step-by-step explanation:
One of the factors of (9x2 -1)-(1+3x)2 is. (a)3+x (b)3-x (c)3x-1 (d)3x+1. Thus, one factor of (9x2 –1) – (1 + 3x)2 is (3x + 1). The correct answer is d
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