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55< 2<33 ( ) 55<33< 2 ( )
: x>5 [Aust.Math.Comp.1980] ( )

5 () x( ) 5 () 5 ()

x −1 5 x +1 x
c
: [Aust.Math.Comp.1980] ( )
)
4c > 8c ( ) 8c > 4c ( )

8+c > 4+c ( ) 8c2 > 4c2 ( )

1 ≤ 2x − 1 ≤ 11 (

6() 5( ) 4( ) 3 ()

−2.4 < x < −1.5 [Aust.Math.Comp.1980] ( )

0<p<2

−4.8 < px < −3.6 ( ) 0 < px < 3 ( )
−4.8 < px < −3 ( )
−4.8 < px < 0 ( )
−5 ≤ y ≤ 10
−6 < x ≤ 5 ( )

90 ( ) 64 ( ) 36 ( ) x2 − y2

25 ( ) )
x(

x+1>1 ( ) x +1 ≥2 ()

x x

x+1<0 ( ) 1<x +1 <2 ( )

x x

x 2 − 10x + 25 ≥ 0 ( )