Answer:
Step-by-step explanation:
The only one that has a chance of being correct is D. That's because the first term is correct and you have to assume that the second one is as well.
cubrt(512) = 8
The first term is (n + 8)
The second term is (n^2 - 8*n + 8^2) = n^2 - 8n + 64
All the other answers have the wrong first term
A: it should be n + 8 not n - 8
B and C are both wrong because the cube root of 512 is 8 not 4.
S = at^2 + v0t + s0
at^2 = s - s0 - v0t
a = (s - s0 - v0t) / t^2
-2n(5 + n - 8 - 3n) = -2n(-3 - 2n) = 6n + 4n²
n = 3, subtitute
6 · 3 + 4 · 3² = 18 + 4 · 9 = 18 + 36 = 54
Answer:
Step-by-step explanation:
a)
b)
Rationnel roots are divisor of -2: -1,1,-2,2
c) see picture
