Y = 2x ^ 2-10x-1에 대한 절편은 무엇입니까?

대답:

# y = -1 #

# x_1 = 0,098 #

# x_2 = 5,098 #

설명:

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

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

# "for 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 #