Question

Factorise : b. x^4+ 4​

Answer 1

Step-by-step explanation:

${x}^{4} + 4 = 0$

$x = \sqrt[ 4]{ - 4}$

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Answer 2

Answer:

x⁴ + 4

= (x² + 2)² - 4x²

= (x² + 2)² - (2x)²

a² - b² = (a + b)(a - b)

= (x² + 2 + 2x)(x² + 2 - 2x)

Answer : (x² + 2 + 2x)(x² + 2 - 2x)

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Step-by-step explanation: