Question

(х²+4y)²;(2a²-b)²;​

Answer 1

Ответ:

Объяснение:

решение внизу

Answer 2

Ответ:

(x²+4y) ²=(x²)²+2x²•4y+(4y) ²=x⁴+8yx²+16y²

(2a²-b) ²=(2a²) ²-2•2a²•b+b²=4a⁴-4a²b+b²

Объяснение:

Вроде так.

Answer 3

It looks like you want to expand the given expressions. Let's expand each of them:

1. (x² + 4y)²:

To expand this expression, you can use the formula for squaring a binomial:

(x + y)² = x² + 2xy + y²

In your case, x² is (x²), y is (4y), and we're squaring the entire expression. So:

(x² + 4y)² = (x²)² + 2(x²)(4y) + (4y)²

Simplify:

(x² + 4y)² = x⁴ + 8xy + 16y²

2. (2a² - b)²:

Using the same formula for squaring a binomial:

(x + y)² = x² + 2xy + y²

In this case, x² is (2a²), y is (-b), and we're squaring the entire expression. So:

(2a² - b)² = (2a²)² + 2(2a²)(-b) + (-b)²

Simplify:

(2a² - b)² = 4a⁴ - 4a²b + b²

So, the expanded forms of the given expressions are:

1. (x² + 4y)² = x⁴ + 8xy + 16y²
2. (2a² - b)² = 4a⁴ - 4a²b + b²