Page 20 - Алгебра_7_сынып_КАЗ - 2 болим

special.edu.kz.

30 ) (x 
2) (22,4x  31,3 )(y  special.edu.kz. 35 ,2y  special.edu.kz.
4,9 –y

 6,6x  ) y  x .

special.edu.kz. 3 a  2 special.edu.kz. ); special.edu.kz.

Өрнекті ықшамдаңдар (12.13–12.15):

6) (
12.13. 1) (a 
8a 
4a 
3
2
11
2) (11x  4 21x  3 43 ) (60 – 19x 3 – 7x 4 );

3) (30b 5 – 15b  16 ) (17 17b   44b 5 );

4) ( 73 17x   19x 3 ) ( 18x  3 – 39x  50 ).
special.edu.kz. 8b  2 – 4x  2 )(70 – 9b special.edu.kz. ); special.edu.kz.



) ( 31 9a
2
12.14. 1) (5a
– 3x
25
2) (17y 

2
3) (2,3c  9,1z  3 11 4 ) (10z 3  3c  18y ); );
5,9

4) (0,8t 2 – 20m  5 ) (41 3m   2,4t 2 ).

special.edu.kz.
special.edu.kz. 3cd ) ( 6a ) (6a z 11b  20k ) (23k  10xy ); ); special.edu.kz.
12.15. 1) (xy 
) (8z


2) 4( b 
19cd

 10k 
3) 21(  mn )( 9 )k   8nm   1 5z ;

4) (1,8abc ) (7,7bc d  ) (10,1d a  ).

18
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