1.
إذا كانت 1)9+y = (x3 فان [IMG]file:///C:/Users/MICROS%7E1/AppData/Local/Temp/msohtmlclip1/01/clip_image002.gif[/IMG] تساوي:
9(x3+1)8
9(x3+1)9
27x2(x3+1)8
27x2

2.
إذا كانت[IMG]file:///C:/Users/MICROS%7E1/AppData/Local/Temp/msohtmlclip1/01/clip_image004.gif[/IMG] فان[IMG]file:///C:/Users/MICROS%7E1/AppData/Local/Temp/msohtmlclip1/01/clip_image006.gif[/IMG] تساوي:
4y
4xy+y2
4xy
2x2+2y

3.
[IMG]file:///C:/Users/MICROS%7E1/AppData/Local/Temp/msohtmlclip1/01/clip_image008.gif[/IMG]
2ex+c
2ex
ex+c
2xex

4.
[IMG]file:///C:/Users/MICROS%7E1/AppData/Local/Temp/msohtmlclip1/01/clip_image010.gif[/IMG]
-15
15
22