Thread: Simplify, rationalize

Hello,

Can someone verify my answers? Thanks. I attached the questions on a pdf.


1.-90 radical 2 + 180
2. 5+6i
3.r=4
4.k = 25? Do I just divide the -10 by 2 and square it?
5. -21KL radical 7K -22k squared radical 3KL
6. -4/3
7. -5i+3/-4
8. 6 plus minus 2 radical 2

Originally Posted by likewhoa

Hello,

Can someone verify my answers? Thanks. I attached the questions on a pdf.


1.-90 radical 2 + 180
2. 5+6i
3.r=4
4.k = 25? Do I just divide the -10 by 2 and square it? <--- that's correct if the co-efficient of the square is (+1)
5. -21KL radical 7K -22k squared radical 3KL
6. -4/3 <-- are you sure that the wording of the question is correct?
7. -5i+3/-4
8. 6 plus minus 2 radical 2

1. There are 9 questions but only 8 answers. Since you didn't use a numeration it is sometimes not possible to assign your answers to the questions.

2. I've marked in red those parts of your answers which are wrong. I can't show you where you went wrong because you didn't show your work. (Results only are not really helpful here)