Question

is x^2+1/x^2=64 find x^4+1/x^4

Answer 1

Heya

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x² + 1/x² = 64

SQUARING BOTH SIDE'S

=>

( x² + 1/x² )² = (64)²

=>

x⁴ + 1/x⁴ + 2 = 4096

=>

x⁴ + 1/x⁴ = 4096 - 2

=>

x⁴ + 1/x⁴ = 4094

Answer 2

If you square both sides you will get answer