Which shows all the values of a that makes the rational expression 3a^2-27 /324-4a^2 unidentified
1 answer:
Answer:
a = ± 9
Step-by-step explanation:
The denominator of the rational expression cannot be zero as this would make it undefined. Equating the denominator to zero and solving gives the values that a cannot be
324 - 4a² = 0 ( subtract 324 from both sides )
- 4a² = - 324 ( divide both sides by - 4 )
a² = 81 ( take the square root of both sides )
a = ± = ± 9 ← excluded values
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C is the correct answer !!
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Choice D
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u have the answer slel........
Hello,
The greatest common factor of 18 and 90 is 9 or 18 .
Bye :)