Question

check my answers?
http://prntscr.com/9qbzep

Answer 1

@whpalmer4

Answer 2

12 is correct

Answer 3

\[{x^2+6x+8 \over x^2-16} \div {x^2+7x+10\over x^2-25}\]
\[={x^2+6x+8 \over x^2-16} \times{ x^2-25 \over x^2+7x+10}\]
\[\\={\left( x+4 \right)\color{olive}{\left( x+2 \right)} \over\left( x+4 \right)\left( x-4 \right)} \times{ \left( x+5 \right)\left( x-5 \right) \over \left( x+5 \right)\color{olive}{\left( x+2 \right)}}\]
\[={x-5 \over x-4}\]

Answer 4

the first is wrong sure - check your work please
second is right - sure

Answer 5

both are correct
can u ur work

Answer 6

sorry
first one is wrong

Answer 7

as others have said, first one is wrong. maybe show us your factoring?