Page 147 - aljaber

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d p [AHSME 1952] ( )

8d2 − p2 ( ) 8d2 + p2 ( )

2 2

8d2 − p2 ( ) 8d2 + p2 ( )

4 4

[AHSME 1953] ( )

x .8 2
.−9 −1
x 2 + 10x + 9 = 0 ( )
x 2 − 8x − 9 = 0 ( ) x 2 − 10x + 9 = 0 ( )
x 2 − 10x + 16 = 0 ( )

6 7() 4 3( ) . 61 6 ( )
5 )
76 34 30 5 ()
x
1 3( ) 6
400
8 3 (

y

.

14 ( ) 12 ( ) . 10 .
10 ( )
200

8 ()