Find the Least Common Denominator of the Rational Expressions $\frac { 1 } { - 3 x }$

question 17

Multiple Choice

Find the least common denominator of the rational expressions.
- $\frac { 1 } { - 3 x }$ and $\frac { 2 } { x ^ { 2 } + 7 x }$

• A) \(- 3 x ( x + 7 )\)
• B) \(- 3 x + 7\)
• C) \(- 3 x ^ { 2 } + 2\)
• D) \(- 3 x ^ { 2 } + 7\)

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