สมการกำลังสอง

Quiz
•
Mathematics
•
8th - 9th Grade
•
Hard
นิรัช ลิ่วศิริวงศ์
Used 129+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
คำตอบของสมการ 5a (a - 7) = 0 คือข้อใด
5
7
5, 7
0, 7
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
คำตอบของสมการ (3x - 7)(x + 3) = 0 มีค่าเท่าไร
7/3 , -3
-7/3 , 3
7/3 , 3
-7/3 , -3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ถ้า a และ b เป็นคำตอบของสมการ x2 - 7x+ 6 =0 แล้ว a + b มีค่าเท่าไร
-7
7
-6
6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
. คำตอบของสมการ x2 - x - 6 = 0 เท่ากับข้อใด
2 , 3
-2 , 3
2 , -3
-2 , -3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
คำตอบของสมการ x2 +2x = 35 เท่ากับข้อใด
-7 , -5
7 , 5
7 , -5
-7 , 5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
คำตอบของสมการ x2 = 18 เท่ากับข้อใด
2√3
3√2
±2√3
±3√2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
คำตอบของสมการ 16x2 = 49 คือข้อใด
7/4
-7/4
±7/4
±49/16
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