Question

18а²-12ав+2в² х²-2ху-4х-8у 3а(в+4)+2с(-в-4)

Answer 1

18а²-12ав+2в²=2*(9a^2-6ab+b^2)=2(3a-b)

3а(в+4)+2с(-в-4)=3ab+12a-2ab-8c

Answer 2

It seems like you want to perform some algebraic operations with the given expressions. Let's break down the steps.

1. The given expression is: 18a² - 12ab + 2b² * x² - 2xy - 4x - 8y

2. You have two terms in this expression, separated by a minus sign (-):

   • First term: 18a² - 12ab + 2b²
   • Second term: x² - 2xy - 4x - 8y

3. You also have another expression: 3a(b + 4) + 2c(-b - 4)

Now, let's simplify each term separately:

For the first term: 18a² - 12ab + 2b²

For this expression, you can factor it further: 6a(3a - 2b) + 2b²

For the second term: x² - 2xy - 4x - 8y

This term doesn't factor any further.

Now, let's simplify the third expression: 3a(b + 4) + 2c(-b - 4)

Distribute the values within the parentheses: 3ab + 12a - 2bc - 8c

So, your simplified expression is: 6a(3a - 2b) + 2b² + x² - 2xy - 4x - 8y + 3ab + 12a - 2bc - 8c

You can't simplify this expression any further without more specific information about the variables or values involved.