" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
Verified answer
Det A = det B3x (x) - 5(2x) = 3(5) - 2x(x)
3x2 - 10x = 15 - 2x2
3x2 + 2x2 - 10x -15 = 0
5x2 - 10x - 15 = 0
x2 - 2x - 3 = 0
(x-3)(x+1) = 0
x = 3 atau x = -1