Answer:
Step-by-step explanation:
−
1.5
f
−
19
*1953 = x(x + 1) /2
2* 1953 = x (x + 1)
3906 = x^2 + x
x^2 + x - 3906 = 0
(X + 63) (x - 62) =0
X + 63 = 0. ^ x - 62 = 0
X = -63 ^ x = 62
:)
Correct, I am not sure it that was the answer you were looking for