SAT Question ad2ec615: Answer, Explanation & Desmos Solution

Which of the following is equivalent to the expression $x^{4} - x^{2} - 6$ ?

Difficulty:Medium

$(x^{2} + 1) (x^{2} - 6)$

$(x^{2} + 2) (x^{2} - 3)$

$(x^{2} + 3) (x^{2} - 2)$

$(x^{2} + 6) (x^{2} - 1)$

Explanation