Question

Which is a factor of 18x2 + 3x − 6? A. 2x + 1 B. 2x + 3 C. 3x + 2 D. 3x − 1

Answer 1

$18x^2+3x-6=3(6x^2+x-2)=3(6x^2+4x-3x-2)\\\\=3[2x(3x+2)-1(3x+2)]=3(3x+2)(2x-1)\\\\Answer:\ \boxed{C.\ 3x+2}$