Determine which factoring technique is appropriate for the given polynomial.
-$$x ^ { 2 } - 4$$
A) difference of squares
B) difference of cubes
C) sum of squares
D) factor out GCF

Question

Quizplus · Accepted Answer

The given polynomial is in the form of $a^2 - b^2$, which is a difference of squares. Therefore, the appropriate factoring technique is to use the formula $(a-b)(a+b)$. In this case, $a=x$ and $b=2$, so the factored form of the polynomial is $(x-2)(x+2)$.

Determine Which Factoring Technique Is Appropriate for the Given Polynomial x2−4x ^ { 2 } - 4x2−4

Determine Which Factoring Technique Is Appropriate for the Given Polynomial $x ^ { 2 } - 4$