b2 = b1 * q = -2
b5 = b1 * q^4 = 16
Делим второе на первое: q³ = -8, q = -2.
b1 = b2 / q = -2 / -2 = 1.
b2 = b1 * q = -2
b5 = b1 * q^4 = 16
Делим второе на первое: q³ = -8, q = -2.
b1 = b2 / q = -2 / -2 = 1.