7 – sinf I variant

Javoblar:

I – variat

1 B 2 A 3 D 4 C 5 A 6 D 7 D 8 C 9 B 10 D 11 A 12 C 13 D 14 C 15 C 16	A
17	B
18	C
19	C
20	C
21	4a^2-18ab+6b^2
22	4a+2b-b=4a+b
23	(a-b)(6+m)
24	6(a+b)^2
25	(a^2-5) (a^2+5)
26	-90
27	67,5
28	90^0
29	40; 50; 90
30	25

II- variat

1	C
2	B
3	D
4	C
5	B
6	D
7	D
8	C
9	D
10	A
11	B
12	A
13	A
14	A
15	D

16	C
17	D
18	B
19	D
20	D
21	10x^2-xy
22	2a^2-13a
23	2x-1+6y
24	(x-y)(c+z)
25	(5x^2-7)(5x^2+7)
26	70
27	62,5
28	90^0
29	30; 60; 90
30	100