Basic operations, simple factors, factor Theorem, Remainder Theorem, Division of polynomials.
One of the factors of 3x3 + x2 - 12x - 4 is :
A. 3x - 2
B. 3x + 2
C. 3x - 1
D. 3x + 1
Answer: D . 3x + 1Tweet
x = -1/3 makes given expression zero, so (3x + 1) is its factor.