Question

Solve the following by using formula .

${x}^{4} + 4$
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Answer 1

Answer:

Step-by-step explanation:

x⁴ + 4

= ( x² )² + ( 2 )²

= ( x² )² + ( 2 )² + 2 × x² × 2 (∵ ( a + b )² = a² + b² + 2ab, Here a = x² and b = 2 )

= ( x² + 2 )² is the answer.