Find All Numbers for Which the Rational Expression Is Not $$\frac { \mathrm { d } - 7 } { 4 - \mathrm { d } }$$

question 161

Multiple Choice

Find all numbers for which the rational expression is not defined.
- $$\frac { \mathrm { d } - 7 } { 4 - \mathrm { d } }$$

• A)d = 4
• B)d = -4
• C)d = 4, 7
• D)None

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