Question

решите уравнение |4x|=8 и |x+1|=4

Answer 1

|4х|=8=>4х=-8=>х=-2
или 4х=8=>х=2
|х+1|=4=>х+1=-4=>х=-5
или х+1=4=>х=3

Answer 2

I4xI=8
4x=8
x1=2, x2=-2
Ix+1I = 4
x+1=4
x1=3, x2=-3