Question

factrisation of x4 + 4​

Answer 1

Answer:

x⁴ + 4

(x²)² + 2²

(x² +2)² - 2.x². 2

(x²+2)²-( 2x)²

(x² +2+2x)(x²+2-2x)

(x²+2x+2)(x²-2x+2)

Step-by-step explanation:

using the formula 1.a² +b² =( a+b)² -2 ab

2. a² - b² = (a+b)(a-b)