Question

A)5-x^2=1-x(x+8) b)4X-(5X+2)=3(1-2X) решить уравнение

Answer 1

а)5-х²=1-х(х+8)
5 - х² = 1 - х² - 8х
8х = -4
х=-0,5
б)4х-(5х+2)=3(1-2х)
4х-5х-2=3-6х
5х=5
х=1

Answer 2

в а -0,5, в верхнем решении верно

Answer 3

a)
5 - x^2 = 1 - x^2 - 8x
5 - x^2 - 1 + x^2 + 8x = 0
8x + 4 = 0 
8x = - 4
x = - 4/8
x = - 0,5

b)
4x - 5x - 2 = 3 - 6x
- x - 2 = - 6x  + 3
- x + 6x = 3 + 2
5x = 5
x = 1