Question

Factorize x^4 + 4
Please answer

Answer 1

Answer:

• Factorize x^4 + 4 =x^4+4
• answer is =x^2 + 2
• because x^4=x^2×x^2
• 4=2×2

Answer 2

Step-by-step explanation:

x⁴ + 4

= (x² + 2)² - 4x²

= (x² + 2)² - (2x)²

[a² - b² = (a + b)(a - b)]

= (x² + 2 + 2x)(x² + 2 - 2x)