Factor. Assume that variables used as exponents represent positive integers.
-$9 x ^ { 2 n } - 4$
A) $\left( 3 x ^ { n } - 2 \right) ^ { 2 }$
B) $\left( 3 x ^ { n } + 2 \right) ^ { 2 }$
C) $\left( 3 x ^ { n } + 2 \right) \left( 3 x ^ { n } - 2 \right)$
D) prime polynomial

Question

Quizplus · Accepted Answer

The expression $9x^{2n} - 4$ is a difference of squares, which factors into $(3x^n)^2 - 2^2$, or $(3x^n + 2)(3x^n - 2)$.

Factor Assume That Variables Used as Exponents Represent Positive Integers 9x2n−49 x ^ { 2 n } - 49x2n−4

Factor Assume That Variables Used as Exponents Represent Positive Integers $9 x ^ { 2 n } - 4$