Answer:
ab² - a²b
Step-by-step explanation:
a²b⁴ - b²a⁴ can be factored as a²b²(b² - a²) which becomes a²b²(b + a)(b - a). Since the numerator and denominator both have (a + b) and ab the final answer is ab(b - a) = ab² - a²b.
Answer:
12 : 8, 18 : 12, 24 : 16, 30 : 20
Step-by-step explanation:
These are the four after 6:4. I didn't know which you needed.
Distance of 10 blocks
Displacement of 2 blocks north
So you want to add together 4, 6, 11, and 9.
So to make it easier, I would first add together 4 and 6, and 11 and 9.
4 and 6 added together is 10
11 and 9 added together is 20
So, just 20 + 10, or 30.
You do the distance times by the amount of time