Algebra-1

To factorize the expression 16x⁴ - 81, we can recognize it as a difference of squares.

We know that 16x⁴ can be written as (4x²)² and 81 is a perfect square, specifically 9².

The expression 16x⁴ - 81 can be rewritten as (4x²)² - 9².

Now we can use the difference of squares formula, which states that a² - b² = (a + b)(a - b).

Applying this formula, we have: (4x²)² - 9² = (4x² + 9)(4x² - 9) =

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