Find the value of (x² - 1) /3 if x =-5
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Step-by-step explanation:
If x=3+√8, then how do I find the value of (x²+1/x²)?. 17 Answers. Debjit Konai, former I am a Student.I love mathematics(my girlfriend). Answered May 4, 2017 · Author has 410 answers and 507.9K answer views.
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Answer:
8
Step-by-step explanation:
x= -5
therefore-5^2= 25
(x^2-1)/3
= (25-1)/3
=24/3
=8
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