Question

factories x⁴+4


please answer this write in a copy if possible ​

Answer 1

Step-by-step explanation:

x⁴+4

= (x²)²+ 2²

=(x²+2)²- 2.x².2 { applying a²+b²= (a+b)²-2ab }

= (x²+2)²- 4x²

= (x²+2)²- (2x)²

= (x²+2+2x ) (x²+2-2x). { applying a²-b² = (a+b)(a-b). }