Question

уравнение
(х-2)(х-3)=х(х+1)
(х-5)(х+1)-х=х^2+5

Answer 1

(х-2)(х-3)=х(х+1)
x²-2x-3x+6=x²+x
x²-x²-2x-3x-x= -6
-6x= -6
x=1

(х-5)(х+1)-х=х²+5
x²-5x+x-5=x²+5
x²-x²-5x+x=5+5
-4x=10
x= -2.5

Answer 2

1) (x-2)(x-3) = x(x+1)
x^2 - 5x + 6 = x^2 + x
6x = 6
x = 1
2) (x-5)(x+1) - x = x^2 + 5
x^2 - 4x - 5 - x = x^2 + 5
-5x - 5 = 5
-5x = 10
x = -2