fast ans this please
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Answer:
4y² + 6/y² = 11
5y⁴ + 6 = 11
5y⁴=11-6
5y⁴= 5
y⁴=5/5
y⁴=1
Step-by-step explanation:
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Answered by
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Step-by-step explanation:
4y² + 6/y² = 11
Let y² = t
Hence, the equation becomes,
4t + 6/t = 11 (Multiply both sides by t)
=>4t² + 6 = 11t
=> 4t² - 11t + 6 = 0
=> 4t² - 8t - 3t + 6 = 0
=> 4t(t-2) -3(t-2) = 0
=> (4t-3)(t-2) = 0
=> t = 3/4 , 2
Because, t = y²
y² = 3/4 , 2
=> y = √3/2 , √2
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