ما هي تقاطعات y = 2x ^ 2-10x-1؟

ما هي تقاطعات y = 2x ^ 2-10x-1؟
Anonim

إجابة:

# ص = -1 #

# X_1 = 0098 #

# x_2 = 5098 #

تفسير:

# ذ = 2X ^ 2-10x-1 #

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

# "لـ y =" 0 #

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

# دلتا = sqrt (100 + 4 * 2 * 1) "" دلتا = sqrt (108) "" دلتا = 10،39 #

# X_1 = (10-10،39) / 4 #

# X_1 = (0،39) / 4 #

# X_1 = 0098 #

# x_2 = (10 + 10،39) / 4 #

# x_2 = (20،39) / 4 #

# x_2 = 5098 #