Question

решить уравнение
x^2-2x+x+2-x^2
7x^2-4x-24+-x^2
7x^2-6x-11+-x^2-2x+13
2x^2-8x+13+(x-5)^2
(x+1)^2+(x-2)^2
(x-10)^2+(1-x)^2

Answer 1

x^2-2x+x+2-x^2= -x+2
7x^2-4x-24+-x^2= 6х^2-4х-24
7x^2-6x-11+-x^2-2x+13= 6х^2-8х+2
2x^2-8x+13+(x-5)^2= 2x^2-8x+13+х^2-10х+25= 3х^2-18х+38
(x+1)^2+(x-2)^2= х^2+2х+1+х^2-4х+4= 2х^2-2х+5
(x-10)^2+(1-x)^2= х^2-20х+100+1-2х+х^2= 2х^2-22х+101
Вот так вот