Determine which factoring technique is appropriate for the given polynomial.
-$$x ^ { 2 } + 121$$
A) sum of cubes
B) factoring by grouping
C) factor out GCF
D) sum of squares

Question

Quizplus · Accepted Answer

The given polynomial is a sum of squares, specifically $x^2$ and $11^2$, which can be factored using the formula $a^2+b^2=(a+bi)(a-bi)$. Therefore, the appropriate factoring technique is the sum of squares.

Determine Which Factoring Technique Is Appropriate for the Given Polynomial x2+121x ^ { 2 } + 121x2+121

Determine Which Factoring Technique Is Appropriate for the Given Polynomial $x ^ { 2 } + 121$