Why is the last one wrong?I disagree with your 4th answer and last answer. Otherwise all good. You might want to reconsider those.
Oh! I had assumed (yes, I know I know!) that the attachment was just a copy of the problem. Yes, the second problem in the attachment is wrong.I am talking about the last one in the final attachment. Is that the same one you are talking about? (The one with the negative fractional exponents)
Alright so for the 4th I don't understand how it might be wrong, the way I did was like this:I disagree with your 4th answer and last answer. Otherwise all good. You might want to reconsider those.
Ok sorry. My mistake. You are correct for the 4th question.Alright so for the 4th I don't understand how it might be wrong, the way I did was like this:
[math]a^2+b^2-c^2+2ab[/math][math]x^2-y^2=(x-y)(x+y)[/math]Let x = [math](a+b)[/math] Let y = [math]c[/math][math](a+b)^2-c^2[/math][math](a+b+c) (a+b-c)[/math]
Aren't both of those trimonials
For the last one, I did the same exact question on a quiz and the teacher didn't mark it wrong, but I guess a lot of people might have, so she put in the home work too
this is my work from the quiz
View attachment 29129
Ok sorry. My mistake. You are correct for the 4th question.
But, in the last, you have chosen D, which says that x+2 is NOT a factor where clearly it is.