Simplify the exponential expression. Write the result using only positive exponents.
-$\left( 3 x ^ { 7 } \right) \left( - 9 x ^ { 9 } \right)$
A) $- 27 x^{ 16}$
B) $- 27 x ^ { 63 }$
C) $27 x ^ { 16 }$
D) $27 x ^ { 63 }$

Question

Quizplus · Accepted Answer

When multiplying exponential expressions with the same base, you add the exponents. Here, $3 \times (-9) = -27$ and $x^7 \times x^9 = x^{7+9} = x^{16}$, resulting in $-27x^{16}$.

Simplify the Exponential Expression (3x7)(−9x9)\left( 3 x ^ { 7 } \right) \left( - 9 x ^ { 9 } \right)(3x7)(−9x9)

Simplify the Exponential Expression $\left( 3 x ^ { 7 } \right) \left( - 9 x ^ { 9 } \right)$