( ) x + 4 ( ) ( ) ( ) ( )+ 3 ( ) x +1 ( ) ( )+ x + 3 ( ) ( ) ( ) ( ) ( )

(

3 ( 3

1 3 90 0

6 7 2

6 7 0 2

6 7 2

6 7 A 0 0 0

2

6 7 A 0 A 2

6 7 2

6 7 0 2

1 3 0

( 6 7 0 B 4


)6 7 A A 0 B 4


3 3 3 3 3 


1 1 1 1 1

6 7B 4


6 7B 4


6 7B _ 0 4


6 7B 4

6 7 0B D 4


6 7 4


A1 3 0

1 6 - 0

B

0 2 0 2

B 3 ( )

6÷7 5

7 5 6 a>0 a <a

x²+5x+4

(

x+1

) (

^x+4

)

A,B,C A=B×C B,C B C

A

− 5

( )

^{2 =− 52}

5

(

ax−b

)

^{A 2}

3

(

ax−b

)

^A

a= 1

3+2,b= 3−2 a b ab=−1 a=−b a=1

b a=b

6,8,x x

2 7 2 13

2x x² a+b a²−b² 2a+3 4a²−12a+9 x²+x x+1

4 :1 10 : 5 8 : 2 4 : 9

x²+4x+3

x x

(

+4

)

⁺³

(

^x+2

)

²⁻¹

(

^x+3

) (

^x+1

)

^{x x}

(

⁺³

)

⁺

(

^x+3

)

7,−12

( ) (

^−5,13

) (

^11,−9

) (

^−10,10

)

x−2 2x²+5x+k 2x²+5x+k 2x+5 2x−7 2x+9 2x−11

ax²+bx+c

( )

^÷x

c bx−c b−c −b

!1

B 0 2


...2


...2


...2

0 A 0 0 2 0 0 5
 8... 2

B 2
 ...2


...2


...2


...2

C 0 0 ...2

0 1 1 1 1 0 A 0 0 A 8... 2


_1 3 C0 2

26 7


0 2 _ 6

7

B 26 7






26 7


0 26 7

−4 15

( )

^{× −⎛}_⎝⎜ ¹₃^⎞_⎠⎟^{−4 5 =}

1 9

16 + 425 36 = 4 3+3 5

( ) (

^{3 5−4 3}

)

⁼

ABC 20 AB AC

AD AD BC BD=CD

ΔABC

2x²−6x=

x²−5x−ax+5a=

−80x²+125y² = 2x+1

( )

^{2+8 2}

(

^x+1

)

⁺¹⁶⁼

( )

2,6

( )

^{1,b a a=}

(

²⁻¹

)

^{2+16 b<a b=}

100 80 60

60 80

100

2 2− 6

6 2.449 2

6−2 2

a,b,c,d

b

a

13 5

5

A B

C

D 15

8

c

d

D

A B

C

x+y

( )

^2−4xy

355+155

( )

^{2−4×355×155}

!2

B C

A

D

4 0 ) 1 )( )

(

2 7 6 6

8 35 6 6

. 6

. 6

. 6

. 6

. 6

a= b=

. 6

c= d=




0

2x x

(

−3

)

2




41 12




x−5

( ) (

^x−a

)

100 2




−3




5 5y

(

+4x

) (

^5y−4x

)




100 3

2x+5

( )

²




−2− 6

a=12,b= 194




40000




c=17,d=120 17




x−y

( )

²




4.45