Page 143 - aljaber

@ @¶ìÿa@óÝy‹¾a@ u@ @QSP

: [AHSME 1955] ( )

x2 − 7 = x −1 (2x − 1)2 = (x − 1)2 3x 2 − 2 = 25 )
x 2 − px + q = 0 3
()
sr ()
()
()
[AHSME 1955] (

q2 − 2p ( ) q2 − 2p ( ) r2 + s2 )
)
6 p2 − 2q ( ) p2 + 2q ( )
[AHSME 1955] (
: .8
x 2 − 6x − 7 = 0 ( )
x 2 − 6x + 7 = 0 ( )
x 2 + 6x − 8 = 0 ( ) x 2 + 6x − 7 = 0 ( )
k [AHSME 1954] (

9() 9 7( ) 2x2 − kx + x + 8 = 0 )

x 2 − 63x + k = 0 −7 ( ) 9 −7 ( )
[AMC12A 2002] (

k

4 ( ) 2 ( ) 1 ( ) 0 ()