Question

If x =
1
/√5−2

then find the value of x² -1/x² and x³ - 1/x³​

Answer 1

Answer:

√5+2 is the answer

Step-by-step explanation:

1/√5-2 × √5+2/√5+2 = √5+2/5-4 =√5+2

Answer 2

Answer:

√5+2 is the answer

Step-by-step explanation:

1/√5-2*√5+2/√5+2=√5+2/5-4=√5+2

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