Answer:13.6%
Step-by-step explanation: I got the same problem and pressed give up.
This is the difference of two perfect cubes.
(6y-4)(36y^2+24y+16)
See the attached, the line going vertically is at -0.7.
Answer:
The roots are
<h3>

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Step-by-step explanation:
9x² + 54x + 82 = 0
Using the quadratic formula
That's
<h3>

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From the question
a = 9 , b = 54 , c = 82
Substitute the values into the above formula and solve
That's
<h3>

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Separate the real and imaginary parts
That's
<h3>

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We have the final answer as
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
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Hope this helps you