Page 204 - aljaber

QYQ@ @†ì‡¨a@pa rØ

3x ( ) 2x + 1 ( ) 2x − 1 ( ) 2x ( )
.1 ( )
r1 q1(x ) [AHSME 1979] ( )
8 r2 q2(x) )
.x + 1 x8
r2
2
1()
x +1 q1(x )
16 2

−1 ( ) − 1 ()

8 16

[M and IQ3] (

(x + 1)(x + 4)(x + 2)(x + 3) = −1

15 ( ) 10 ( ) −10 ( ) −15 ( )
x +1 ( )
x2 −1 f (x ) = x 51 − 1 ( )
8() )
−1x + 1 ( ) x −1 ( ) −1x − 1 () )

22 22

x 3 − 6x 2 − x + 30 = 0 (
.

5( ) 3( ) −2 ( )

1 −1 (

f (x) = x 4 − 7x 3 + 11x 2 + 7x − 12 = 0

11 ( ) 10 ( ) 9( ) 7()
7 ()

. f (x) = 3x 3 − 14x2 − 55x + 42