Question

1.x²-121v². 2.(7x-8y)2 = 3. (8a+b)³ 4.64a³ +343= 5. (4m-2n)³ ​

Answer 1

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Answer 2

It seems like you've provided five expressions, and it appears that you want me to simplify or factor them. Let's work on each of these expressions:

1. x² - 121v²:

This is a difference of squares, which can be factored as follows: x² - 121v² = (x + 11v)(x - 11v)

2. (7x - 8y)²:

This is a perfect square trinomial, which can be expanded as follows: (7x - 8y)² = 49x² - 112xy + 64y²

3. (8a + b)³:

This is a cube of a binomial, and it can be expanded using the binomial cube formula: (8a + b)³ = 512a³ + 192a²b + 24ab² + b³

4. 64a³ + 343:

This is the sum of cubes, and it can be factored using the sum of cubes formula: 64a³ + 343 = (4a + 7)(16a² - 28a + 49)

5. (4m - 2n)³:

This is a cube of a binomial, and it can be expanded using the binomial cube formula: (4m - 2n)³ = 64m³ - 48m²n + 12mn² - 8n³

These are the simplified or expanded forms of the given expressions.