Kakšni so prestopi za y = 2x ^ 2-10x-1?

Kakšni so prestopi za y = 2x ^ 2-10x-1?
Anonim

Odgovor:

# y = -1 #

# x_1 = 0,098 #

# x_2 = 5,098 #

Pojasnilo:

# y = 2x ^ 2-10x-1 #

# "za x =" 0 "" rArry = -1 #

# "za y =" 0 #

# 2x ^ 2-10x-1 = 0 #

# Delta = sqrt (100 + 4 * 2 * 1) "" Delta = sqrt (108) "" Delta = 10,39 #

# x_1 = (10-10,39) / 4 #

# x_1 = (0,39) / 4 #

# x_1 = 0,098 #

# x_2 = (10 + 10,39) / 4 #

# x_2 = (20,39) / 4 #

# x_2 = 5,098 #