Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Promoted
Could someone explain how they got the answer of 2 from 1?
2 Answers
Relevance
- PuzzlingLv 73 weeks ago
They multiplied top and bottom by 2.
The numerator becomes -10.
This is what happens to the denominator:
4(1 + ¼(1 - 2x + x²))
= 4 + (1 - 2x + x²)
= 5 - 2x + x²
= x² - 2x + 5
Still have questions? Get your answers by asking now.