I do A and B but that is the way I learned it. Hope this helps :)
Answer: Commutative property of addition
The order doesn't matter when it comes to adding.
The general rule can be written as x+y = y+x.
Answer:
465.804
Step-by-step explanation:
Answer:
2x³ + mx² - 13x + n
y = x - 2
x = 2
2(2)³ + m(2)² - 13(2) + n = 0
16 + 4m - 26 + n = 0
4m + n = 10. (1)
y = x - 3
x = 3
therefore 9m + n = -15
solving simultaneously
m = -5, n = 30
m + n = 25
