Question

If x^4 - 16x^2 +64 = 0 Find the value of x​

Answer 1

Answer:

The answer is

$2 \sqrt{2} \: or - 2 \sqrt{2}$

Step-by-step explanation:

You can factorize the equation

x⁴-16x²+64 = 0

Or, (x²)²-2.x².8+(8)² = 0

Or, (x²-8)² = 0

Or, x²-8 = 0

Or, x² = 8

Or, x =

$\sqrt{8}$

Or, x = ±(2×2^½)

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