## Intermediate Algebra for College Students (7th Edition)

$3x^2,(2x-1)(2x+1)$
Given:$12x^4-3x^2$ or, $(3x^2)(4x^2)-3x^2$ Take the common terms out. Thus, $=3x^2(4x^2-1)$ Since,$(a+b)(a-b)=a^2-b^2$ Hence, Factors are :$3x^2,(2x-1)(2x+1)$