Question

determinar el discriminante de la ecuacion
(x-1)(x-2)=4x-10

Answer 1

(x-1)(x-2)=4x-10
x²-3x+2 =4x-10
x²-3x-4x+2+10=0
x²-7x+12=0
a=1   b = -7   c = 12

D = b²-4ac
D = (-7)²-4(1)(12)
D = 49 - 48
D = 1