Question

Hi, so I know the answer to this problem (now that I got it wrong) but I'm not quite sure why I was wrong, help?

Answer 1

Answer:Because its -2x exponent of 2 so you cant do anything to that but you can touch the 2x it doesn't have a exponent so that's why but now since you did something to 2x you have to change 2x exponent of 2 into negative

Step-by-step explanation:

Answer 2

2x² + 2x + ? = x

⇒ ? = x - 2x² - 2x

⇒ ? = -2x² - x

Your answer is incorrect because 2x² - x² would mean x² is part of the answer, which is clearly incorrect.