Question

${x}^{4} - 16 =$
What is the answer and steps ​

Answer 1

Answer:

$(x - 2) \times (x + 2) \times ( {x}^{2} + 4)$

Step-by-step explanation:

${x}^{4} - 16$

➡️ ${x}^{2 \times 2} - 16$

➡️ ${x}^{2 \times 2} - {4}^{2}$

➡️ $( {x}^{2} {)}^{2} - {4}^{2}$

➡️ $( {x}^{2} - 4) \times ( {x}^{2} + 4)$

➡️ $(x - 2) \times (x + 2) \times ( {x}^{2} + 4)$