Express the following as a single fraction involving positive exponents only. 4 x ^{- 3} - 5 x ^{- 7} A) $\frac { 4 x ^ { 4 } - 5 } { x ^ { 7 } }$ B) $4 x ^ { 7 } - 5 x ^ { 3 }$ C) $\frac { 4 x ^ { 4 } - 5 } { x ^ { 6 } }$

Question

Quizplus · Accepted Answer

The given expression simplifies to $\frac{4x^{-3} - 5x^{-7}}{1}$, which can be rewritten with positive exponents as $\frac{4}{x^3} - \frac{5}{x^7}$. To combine these into a single fraction, find a common denominator, which is $x^7$, resulting in $\frac{4x^4 - 5}{x^7}$.

Express the Following as a Single Fraction Involving Positive Exponents 4x4−5x7\frac { 4 x ^ { 4 } - 5 } { x ^ { 7 } }x74x4−5​

Express the Following as a Single Fraction Involving Positive Exponents $\frac { 4 x ^ { 4 } - 5 } { x ^ { 7 } }$