x²- 5x=1 find x²+1/x²
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Answered by
6
x² - 5x = 1
x² - 1 = 5x
(dividing the equation by x)
x - 1/x = 5
(squaring both sides)
(x - 1/x)² = 5²
x² + 1/x² - 2 = 25
x² + 1/x² = 25 +2
x² + 1/x² = 27
HOPE IT WILL HELP YOU. :-)
Answered by
5
Answer:
x²-5x = 1
x²-1 = 5x
(dividing the equation by x)
x - 1/x = 5
(squaring both sides)
x² + 1/x² - 2 = 25
x² + 1/x² = 25 + 2
x² + 1/x² = 27
Step-by-step explanation:
HOPE IT WILL HELP YOU:-)
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