Find theLCM of (2x²-3xy)²,(-4x-6y)³,(8x³-27y³)
Answers
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Answer:
X3_y3 answer hope it helps
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1
Step-by-step explanation:
Correct question:
If x = 1/x - 5, then find the value of x² + 1/x²
AnswEr:
value of x² + 1/x² is 27.
ExplanaTion:
Given that,
x = 1/x - 5
Therefore, x - 1/x = - 5
We know that,
( a - b )² = a² + b² - 2ab
Letting a = x and b = 1/x
=> ( x - 1/x )² = x² + 1/x² - 2
=> (-5)² = x² + 1/x² - 2
=> 25 = x² + 1/x² - 2
=> 25 + 2 = x² + 1/x²
=> x² + 1/x² = 27
Therefore, value of x² + 1/x² is 27.
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