回答:
#y = -1#
#x_1 = 0,098#
#x_2 = 5,098#
説明:
#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#