Question

y=-x2+12x-20 resolver por factorizacion

Answer 1

y= -(x-10) (x-2)=
y= -(x^2 - 2x-10x +20) =
y= - (x^2 -12x + 20)
y= -x^2+12x - 20
 

Answer 2

llevandolo al otro extremo

 

x2-12x+20=

x           - 10=-10x  +

x           - 2  =-2x

                     ___

                      -12x

 

(x-10)(x-2)=y

 

sacando raices

 

(x-10)=y

x-10=y

x1=y+10

 

(x-2)=y

x-2=y

x2=y+2