125 = 5^3 = 25 * 5
The simplification you are trying to do involves finding the prime factorization of a number. Since 125 is not divisible by 2, move on to 3. 125 is also not divisible by 3, so move on to 5. Then 125/5 = 25, and 25/5 = 5, so 125 = 5^3. The prime factorization of 125 is 5^3.
You have to make a proportion:
12+x/8=8/x
Then cross multiply to solve for x
The range is A. {(1, -3), (6,-3), (-3, -3)}
Answer:
Other answer.
Step-by-step explanation:
Using I forgot who's thingummy math thing
change sign thing
ah, descartes rule of signs, thank you google
replace x with -x
simplify
count the number of times the sign changes between terms
if the number is 2 or more, keep subtracting 2 until you reach 0 or 1
so
if we replace x with -x we get
-x^5+2x^3+7x^2-2x-2
(-), (+), (+), (-), (-)
2 changes
2-2=0
so 2 or 0 possible negative real roots
