Given that x = is not equal to 0, x + 1 / x = 3, find the fourth power of X + 1 / X=

x＋1/x＝3
（x＋1/x）²＝3²
x²＋1/x²＋2＝9
x²＋1/x²＝7
（x²＋1/x²）²＝7²
x^4＋1/x^4＋2＝49
x^4＋1/x^4＝47.

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