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For the Function f(x)=62x−8−6x+5f(x)=6 \sqrt{2 x-8}-6 \sqrt{x+5} , Find All Values xx

Question 346

Multiple Choice

For the function f(x) =62x−8−6x+5f(x) =6 \sqrt{2 x-8}-6 \sqrt{x+5} , find all values xx for which f(x) =−18f(x) =-18 .


A) 4
B) -11
C) 18
D) 11

Correct Answer:

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