If x = 3+2✓2 find the value of x²+1/x²
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the answer is in the picture
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Step-by-step explanation:
x² = 9+8+12√2= 17+12√2
x²+1/x²
17+12√2 + 1 / 17+12√2
Rationalize denominator
17+12√2 + (17-12√2) / (17+12√2) (17-12√2)
17+12√2 + (17-12√2) / 1
34.
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