Answer:
<h2>A. -2x³ - 6x² + 9x</h2>
Step-by-step explanation:

we are given

now, we can factor out right side term


now, we can plug back
and we get
so,
.............Answer
Answer: 1.4 min per min
Step-by-step explanation: sorry if wrong
Answer:
Real numbers are "closed" under multiplication
Irrational numbers are "not closed" under division
Integers are "closed" under subtraction
Positive ration numbers are "closed"
Hope this helps! :)
Answer:
2 8/11 = b
Step-by-step explanation:
2b + 8 - 5b + 3 = -13 + 8b - 5
combine like terms
11 - 3b = -18 + 8b
add 3b
11 = -18 + 11b
add 18
29 = 11b
divide by 11
2 8/11 = b