x2-4x-5=0 berapakah jumlah/jawabannya

x^2 - 4x - 5 = 0
(x -5) (x + 1) = 0
X1 = 5
X2 = -1

x² -4x - 5 =0
a= 2
b=p x q= -4
c= -5
a x c = p x q = 2 x -5
p= 2 , q= -5

x²-4x -5 = (x +2)(x -5)/1 = ( x + 2)( x - 5)