Answer: jump -2, 6 times
Step-by-step explanation:
They lose $12
Each hop is 1 day and they lose $2
1488 labels divided by 16 labels equals 93. So the answer is D.
Answer:
if I am not mistaking It's the second one 81 now I might be wrong so if so I am sorry
Remark
You'll see it a whole lot easier if you make a substitution so that it looks like something you have already seen
Solution
let y = x^2
x^4 = x^2 * x^2
x^4 = y * y
x^4 = y^2
Now the expression becomes
y^2 + 8 y - 9 = z
(y + 9)(y - 1) = z
Now put the x^2 back in.
(x^2 + 9) ( x^2 - 1) = z
x^2 - 1 becomes x + 1 and x - 1. At this level x^2 + 9 can't be factored.
Answer
(x^2 + 9) (x + 1)(x - 1)
Associative property. (a•b)•c=a•(b•c)
