Ikkinchi darajali tenglama qatnashgan eng sodda sistemalarni yechish — 9-sinf Algebra test savollari

1.{x+y=5, xy=6} tizim berilgan. x² + y² yig'indisini toping.

• A)13
• B)25
• C)6
• D)19

2.{x²+y²=25, xy=12} tizim berilgan. x+y ning musbat qiymatini toping.

• A)7
• B)49
• C)13
• D)5

3.{x-y=3, xy=10} tizimda x va y musbat. x ning qiymatini toping.

• A)5
• B)2
• C)-5
• D)10

4.{x²-y²=16, x-y=4} tizimda x+y ni toping.

• A)4
• B)16
• C)8
• D)2

5.{x²+xy+y²=19, x+y=5} tizimda xy ni toping.

• A)6
• B)19
• C)5
• D)25

6.{x+y=7, xy=12} tizimni yeching. x > y bo'lsa, x ning qiymatini toping.

• A)4
• B)3
• C)7
• D)12

7.{x²+y²=13, xy=6} tizimda (x+y)² ni toping.

• A)25
• B)13
• C)6
• D)19

8.{x²+y²=20, x²-y²=12} tizimda x² ni toping.

• A)16
• B)4
• C)20
• D)12

9.{xy=8, x+y=6} tizimda x²+y² ni toping.

• A)20
• B)36
• C)16
• D)6

10.{x+y=8, xy=15} tizimni yeching. Kichik ildizni toping.

• A)3
• B)5
• C)8
• D)15