Simplify and write with positive exponents only. -$\left( 9 x ^ { - 7 } \right) \left( 7 x ^ { - 5 } \right)$ A) 63 x¹² B) 63 x³⁵ C) -63 x³⁵ D) $\frac { 63 } { x ^ { 12 } }$

Question

Quizplus · Accepted Answer

When multiplying powers with the same base, you add the exponents. Here, $9 \times 7 = 63$ and $x^{-7} \times x^{-5} = x^{-7-5} = x^{-12}$. Writing with positive exponents, $63x^{-12}$ becomes $\frac{63}{x^{12}}$.

Simplify and Write with Positive Exponents Only (9x−7)(7x−5)\left( 9 x ^ { - 7 } \right) \left( 7 x ^ { - 5 } \right)(9x−7)(7x−5)

Simplify and Write with Positive Exponents Only $\left( 9 x ^ { - 7 } \right) \left( 7 x ^ { - 5 } \right)$