Question

x⁴+4
factorise
step by step explanation​

Answer 1

x²+(2)²

a²+b² = (a+b)² - 2ab

=> (x+2)² - 4x

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Answer 2

Answer:

x⁴ +4 =0

(x²)² + (2)²=0

(x² + 2) (x²-2) = 0

x² + 2 = 0, x² -2 = 0

x= √(2) , x = √(2)