หาค่า a,b และ c สมการกำลังสองตัวแปรเดียว

Quiz
•
Mathematics
•
3rd Grade
•
Hard
Orathai Sinmai
Used 40+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
จงหาค่า a,b และ c จากสมการ 2x2 + 6x = 15
a = 2 , b = 6 , c = 15
a = 2 , b = – 6 , c = – 15
a = 2 , b = 6 , c = – 15
a = – 2 , b = – 6 , c = – 15
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
x + 18 = x ( x – 6 ) จากสมการค่าของ a,b และ c มีค่าตรงกับข้อใด
a = 2 , b = 7 , c = 18
a = 2, b = – 7 , c = – 18
a = – 1 , b = – 7 , c = – 18
a = – 1 , b = 7 , c = 18
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
จากสมการ 4x ( x + 3 ) = x – 6 ค่าของ a,b และ c มีค่าตรงกับข้อใด
a = 4 , b = 11 , c = 6
a = 4 , b = –11 , c = 6
a = 4 , b = 11 , c = –6
a = –4 , b = –11 , c = –6
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
จงหาค่า a,b และ c จากสมการ ( k – 4 )2 – 14 = 0
a = 1 , b = 8 , c = 2
a = 1 , b = – 8 , c = 2
a = 1 , b = – 8 , c = –2
a = –1 , b = – 8 , c = –2
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
จากสมการ ( m – 5 )2 = 2 – 10m ค่าของ a,b และ c มีค่าตรงกับข้อใด
a = 1 , b = 0 , c = 23
a = –1 , b = 0 , c = –23
a = –1 , b = 0 , c = 23
a = 1 , b = 0 , c = –23
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
จากสมการ x2 – x – 6 = 0 ค่าของ ( b × c ) + a มีค่าตรงกับข้อใด
6
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7
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7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
จากสมการ y2 – 6y = – 9 ค่าของ ( b × a ) ÷ ( c ÷ 3 ) มีค่าตรงกับข้อใด
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