" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
Jawaby = m + 1substitusi ke y = x² - 4x
x² - 4x = m + 1
x² - 4x - (m+1) = 0
syarat menyinggung D= 0
b² = 4ac
(-4)² = 4(1)(-m -1)
16 = -4m - 4
16+ 4= - 4m
20 = - 4m
m = 20/-4
m = - 5