Solve for x: 4/x - x/8 = 0

asked Jul 8, 2022 91.6k views

5 votes

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1 vote

4/x - x/8 = 0
(32 - x^2)/8x = 0 (change into a single fraction)
32 - x^2 = 0
- x^2 = - 32
x^2 = 32
x = sqrt(32)
x = 4 sqrt(2)
x ≈ 5.66

Kuro Neko answered Jul 10, 2022

5.1k points

4 votes

Answer:

x = √(32)

Explanation:

$(4)/(x) - (x)/(8) = 0\\\\(4)/(x) = (x)/(8)\\\\x^2 = 32\\\\x = √(32)$

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