If you're looking for the number of dogs (I'm assuming, you didn't specify), all you'd have to do is divide the number by two, then round down to find the number of dogs, then check your answer by adding that number and that number plus 5.
For example, yours would look like 125/6=62.5, and rounding down to 60.
Then check your answer by adding 60 and 65, the number of cats. 60+65=125.
There are 60 dogs inside the kennel.
(- d + e)(4e + d)
-d*4e - d^2 + 4e^2 + de
-d^2 - 3de + 4e^2
That's the answer to the expansion. Without choices, there is not much else I can do.
3250
You will need to Multiply 10x325
Some people call 'n' "zero" for the first term, others call 'n' "1".
-- If n=0 for the first term, then T(0) = 0² + 3 = 3 .
-- If n=1 for the first term, then T(1) = 1² + 3 = 4 .