" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a = 2
b = -9
c = c
D = b² - 4ac
b² - 4ac = 121
(-9)² - 4(2)(c) = 121
81 - 8c = 121
-8c = 121 - 81
-8c = 40
8c = -40
c = -40/8
c = -5
121 = (-9)² - 4 × 2 × c
121 = 81 - 8c
8c = 81 - 121
8c = -40
c = -5