Factor, using the given factor. Assume all variables represent positive real numbers.
-$x ^ { - 8 } - 6 x ^ { - 4 } ; \quad x ^ { - 8 }$
A) $x ^ { - 8 } \left( 1 + 6 x ^ { 6 } \right)$
B) $x ^ { - 8 } \left( x - 6 x ^ { 5 } \right)$
C) $x ^ { - 8 } \left( 1 - 6 x ^ { 4 } \right)$
D) $x ^ { - 8 } \left( x - 6 x ^ { 4 } \right)$

Question

Quizplus · Accepted Answer

Factoring out $x^{-8}$ from each term in the expression $x^{-8} - 6x^{-4}$ gives $x^{-8}(1 - 6x^{4})$, since $x^{-8} \cdot 1 = x^{-8}$ and $x^{-8} \cdot (-6x^{4}) = -6x^{-4}$.

Factor, Using the Given Factor x−8−6x−4;x−8x ^ { - 8 } - 6 x ^ { - 4 } ; \quad x ^ { - 8 }x−8−6x−4;x−8

Factor, Using the Given Factor $x ^ { - 8 } - 6 x ^ { - 4 } ; \quad x ^ { - 8 }$