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亶仄舒亞/仂..............................................................
弌仄/亟勵勵亞 ................................................................................
于仂亞..........................................................

仆亞亳, 弍勵仍亞..................

..........................................................................

弌仂仆亞仂 亟舒舒仍亞舒于舒
1. 仍亳亶仍仍亳亶仆 亞亞 仂仍仂仂仂亶.
1-2+3-4+5-6++9-100=?
. -1
B. -50

C. 50

D. -100

E. 100

2. 亟亳仍 舒亢 亞于舒仍亢仆 仂仂亶仆 唏仆唏亞 1000 弍仂仍 亳亶仆 唏仆亞亳亶亞 仂仍仂仂仂亶.
A. 450 ; 350

B. 300 ; 200

D. 300 ;500

E. 400 ; 400

3. x2+5x+6 仂仍仂仆 亞亳勵勵仆亳亶亞 勵亢亳亞亟勵勵仆 弍仂仍亞仂仆 亰舒亟舒仍.
A. (x+5)(x+1)
B. (x+4)(x+2)
C. (x+2)(x+6)

C. 500; 500

D. (x+2)(x+3)

E. (x+4)(x+1)

4. f(x)=(x-1)2+3 仗舒舒弍仂仍仆 亞 仄亳亶仆 仆仍亞亳亶亞 仂仍仂仂仂亶.

A. x=3

B. x=2

D. x=0

C. x=-1

E. x=1

5. 仍亳亶仍仍亳亶仆 亞亞 仂仍仂仂仂亶. 13  14  15  16 + 1 =?
A. 13  16 + 1

B. 15  16

C. 152 + 1

D. 14  16

E. 14  16 + 1

6. 弌亳亠仄亳亶亞 弍仂亟.
{

x + y + xy = 23
xy = 15
A. (2;7,5) (7,5;2)

B. (1;15)(15;1)

C. (5;3) (3;5)

D. (15;8)(8;15)

E. (1;21)(21;1)
7. 45% 仆 亰 弍舒亶 36 从亞 仂仍 亟 60% 亰 弍仂仍亞仂仆 仍亟 亟仆 从亞 亰 仆仄 亞亶 于?
A. 12,5 从亞
8.

B. 13 从亞

E. 10 从亞

D. 14从亞

x=23 弍舒 y=5! 弍仂仍 m=丱丱(x;y)=? 弍舒 n=丱丱(x;y)=?
A. m=8; n=120

9.

C. 13,5 从亞

0<c<4 弍仂仍
1

1
c

B. m=4; n=8

C. m=8; n=24

D. m=8; n=24

E. m=8; n=8

亳亶亞 勵仆仍.

5

1

A. c > 4

1

1

1

1

C. c < 4

B. c >4

1

D. c < 0

E. c < 16

10. f(x)=x2+2 仆从亳亶仆 弍舒 亰舒于亞 仂仍仂仂仂亶.

A. (; +)

B. (2; +)

C. (0; +)

D. (0; 2)

E. (; 0)

11. 丐亞亳亞仍亳亶亞 弍仂亟. 3x3-8x2+14x=0
A. {3;-8;14}

B. {0}

C. {0;2;4}

D. {1;2;0}

E. {1;2;3}

D. {0;7}

E. {1;25}

12. 丐亞亳亞仍 弍仂亟. |8x  3| = |9  x|
6 4
7 3

4
3

A. {  ; }

B. { 0; }

C. {3;4}

13. 23,2(25)= 亅仆亞亳亶仆 弍舒舒亶 弍仂仍亞仂.
A. 23

301
300

B. 23

301
903

C. 23

331
901

D. 23

223
990

14. 亳仄亠亳从 仗仂亞亠亳亶仆 舒2=1 ; a5=5,5 弍仂仍 S10=?
A. 77

B. 68

15. 亳亶仍弍亳亶亞 仂仍仂仂仂亶.
A. 5

B.

1
625

B. 62,5
1
5

1

D. 42,5

E. 44

1

+ 25 + 125 +  =?
C.

1
4

D. 1

E. 4

E. 23

300
931
16. x-亳亶仆 亞亞 仂仍仂仂仂亶.

A.

21
5

D.

21
8

B. 5

C.

35
3

E. 3

舒亟亞舒亶 亟舒舒仍亞舒于舒
1. ABCD 从于舒亟舒仆 仂 仂仂亶 舒弍亳 仆仍亞 亟, 仆唏亞唏唏 2 仂仂亶  = 8  x 2 仗舒舒弍仂仍
亟 仂亳 弍仂仍 从于舒亟舒仆 舒仍弍舒亶亞 仂仍仂仂仂亶.

2.

O 唏于亶 仂亶亞亳亶仆 舒亟亳 仆 8 仄. 弌 唏仆唏亞 仆 900 . AB=BC
a)

AC-亳亶仆 亞 仂仍仂仂仂亶.

b)

ABC 唏仆亞亳亶亞 仂仍仂仂仂亶.

c)

BC-亳亶仆 亞 仂仍仂仂仂亶.
3. 36 仄仂亟仂亶 唏亰唏仆唏唏 2 仄仂亟 舒舒仄亞舒舒 仂仆亞仂于.
a) 亊亟舒亢 仆亞 仆仂仆 弍舒亶
b) 丱仂仍舒舒 舒舒仆 弍亳 弍舒亶 仄舒亞舒亟仍舒仍亞 仂仍仂仂仂亶.

c) 亊亟舒亢 仆亞 弍仆亟舒仆 弍舒亶

4.

- 仗舒舒仄亠亳亶仆 礆舒 亞舒仆亟 x2-(a2-1)x-7a=0 亞亳亞仍亳亶仆 于亟 x1+x2=8 弍舒亶 于?

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Mat9 1

  • 1. 亶仄舒亞/仂.............................................................. 弌仄/亟勵勵亞 ................................................................................ 于仂亞.......................................................... 仆亞亳, 弍勵仍亞.................. .......................................................................... 弌仂仆亞仂 亟舒舒仍亞舒于舒 1. 仍亳亶仍仍亳亶仆 亞亞 仂仍仂仂仂亶. 1-2+3-4+5-6++9-100=? . -1 B. -50 C. 50 D. -100 E. 100 2. 亟亳仍 舒亢 亞于舒仍亢仆 仂仂亶仆 唏仆唏亞 1000 弍仂仍 亳亶仆 唏仆亞亳亶亞 仂仍仂仂仂亶. A. 450 ; 350 B. 300 ; 200 D. 300 ;500 E. 400 ; 400 3. x2+5x+6 仂仍仂仆 亞亳勵勵仆亳亶亞 勵亢亳亞亟勵勵仆 弍仂仍亞仂仆 亰舒亟舒仍. A. (x+5)(x+1) B. (x+4)(x+2) C. (x+2)(x+6) C. 500; 500 D. (x+2)(x+3) E. (x+4)(x+1) 4. f(x)=(x-1)2+3 仗舒舒弍仂仍仆 亞 仄亳亶仆 仆仍亞亳亶亞 仂仍仂仂仂亶. A. x=3 B. x=2 D. x=0 C. x=-1 E. x=1 5. 仍亳亶仍仍亳亶仆 亞亞 仂仍仂仂仂亶. 13 14 15 16 + 1 =? A. 13 16 + 1 B. 15 16 C. 152 + 1 D. 14 16 E. 14 16 + 1 6. 弌亳亠仄亳亶亞 弍仂亟. { x + y + xy = 23 xy = 15 A. (2;7,5) (7,5;2) B. (1;15)(15;1) C. (5;3) (3;5) D. (15;8)(8;15) E. (1;21)(21;1)
  • 2. 7. 45% 仆 亰 弍舒亶 36 从亞 仂仍 亟 60% 亰 弍仂仍亞仂仆 仍亟 亟仆 从亞 亰 仆仄 亞亶 于? A. 12,5 从亞 8. B. 13 从亞 E. 10 从亞 D. 14从亞 x=23 弍舒 y=5! 弍仂仍 m=丱丱(x;y)=? 弍舒 n=丱丱(x;y)=? A. m=8; n=120 9. C. 13,5 从亞 0<c<4 弍仂仍 1 1 c B. m=4; n=8 C. m=8; n=24 D. m=8; n=24 E. m=8; n=8 亳亶亞 勵仆仍. 5 1 A. c > 4 1 1 1 1 C. c < 4 B. c >4 1 D. c < 0 E. c < 16 10. f(x)=x2+2 仆从亳亶仆 弍舒 亰舒于亞 仂仍仂仂仂亶. A. (; +) B. (2; +) C. (0; +) D. (0; 2) E. (; 0) 11. 丐亞亳亞仍亳亶亞 弍仂亟. 3x3-8x2+14x=0 A. {3;-8;14} B. {0} C. {0;2;4} D. {1;2;0} E. {1;2;3} D. {0;7} E. {1;25} 12. 丐亞亳亞仍 弍仂亟. |8x 3| = |9 x| 6 4 7 3 4 3 A. { ; } B. { 0; } C. {3;4} 13. 23,2(25)= 亅仆亞亳亶仆 弍舒舒亶 弍仂仍亞仂. A. 23 301 300 B. 23 301 903 C. 23 331 901 D. 23 223 990 14. 亳仄亠亳从 仗仂亞亠亳亶仆 舒2=1 ; a5=5,5 弍仂仍 S10=? A. 77 B. 68 15. 亳亶仍弍亳亶亞 仂仍仂仂仂亶. A. 5 B. 1 625 B. 62,5 1 5 1 D. 42,5 E. 44 1 + 25 + 125 + =? C. 1 4 D. 1 E. 4 E. 23 300 931
  • 3. 16. x-亳亶仆 亞亞 仂仍仂仂仂亶. A. 21 5 D. 21 8 B. 5 C. 35 3 E. 3 舒亟亞舒亶 亟舒舒仍亞舒于舒 1. ABCD 从于舒亟舒仆 仂 仂仂亶 舒弍亳 仆仍亞 亟, 仆唏亞唏唏 2 仂仂亶 = 8 x 2 仗舒舒弍仂仍 亟 仂亳 弍仂仍 从于舒亟舒仆 舒仍弍舒亶亞 仂仍仂仂仂亶. 2. O 唏于亶 仂亶亞亳亶仆 舒亟亳 仆 8 仄. 弌 唏仆唏亞 仆 900 . AB=BC a) AC-亳亶仆 亞 仂仍仂仂仂亶. b) ABC 唏仆亞亳亶亞 仂仍仂仂仂亶. c) BC-亳亶仆 亞 仂仍仂仂仂亶.
  • 4. 3. 36 仄仂亟仂亶 唏亰唏仆唏唏 2 仄仂亟 舒舒仄亞舒舒 仂仆亞仂于. a) 亊亟舒亢 仆亞 仆仂仆 弍舒亶 b) 丱仂仍舒舒 舒舒仆 弍亳 弍舒亶 仄舒亞舒亟仍舒仍亞 仂仍仂仂仂亶. c) 亊亟舒亢 仆亞 弍仆亟舒仆 弍舒亶 4. - 仗舒舒仄亠亳亶仆 礆舒 亞舒仆亟 x2-(a2-1)x-7a=0 亞亳亞仍亳亶仆 于亟 x1+x2=8 弍舒亶 于?