Answer: Third Choice. x= 6 1/3
Step-by-step explanation:
Given
f(x) = 9x² - 54x - 19
Completing the square
3x -19
3x 1
Substitute back to the function
f(x) = (3x-19) (3x+1)
Simplify
x= 6 1/3 or -1/3
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2 and 14/15
Because the first step of subtraction is common denominators
The answer is 0.2 when it is fully simplified
Answer:
-72
Step-by-step explanation:
the answer is -72