The answer is C. you can check the attached picture.
Answer- 9 students preferred vanilla
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Answer:
x ≈ 1.5004
Step-by-step explanation:
We suppose your equation is ...
Squaring both sides and subtracting the right side gives ...

This 6th-degree equation has two positive real roots, near x=1.5, and x=2. The root at x=2 is extraneous. The one near x=1.5 is irrational.