Yun was trying to factor 7x- 14x. He found that the greatest commonfactor of these terms was 7x and made an area model:Width722-14хWhat is the width of Yun's area modelWidth =+＝?

Answer 1

It appears there might be some confusion in your notation or expression. To factor 7x - 14x, you can first factor out the common factor, which is 7x. Here's how you do it:

7x - 14x = 7x(1 - 2)

Now, the common factor of 7x has been factored out, and you're left with 1 - 2 inside the parentheses. So, the expression 7x - 14x can be simplified to:

7x(1 - 2)

Now, it's clear that the width of Yun's area model is 1 - 2, which is equal to -1.

So, the width of Yun's area model is -1.