Quadratics review
Mathematics
2 plays
10 questions
Question 1
Multiple Choice
10 points
One solution to a quadratic with complex solution is 3 + 2i. What is the other solution?
A.3-2i
B.-3-2i
C.2-3i
D.-2-3i
Question 2
Multiple Choice
10 points
One solution to a quadratic with complex solution is -8 - 4i. What is the other solution?
A.-8-4i
B.-8+4i
C.8-4i
D.8+4i
Question 3
Multiple Choice
10 points
One solution to a quadratic with complex solution is 10 -7i. What is the other solution?
A.10+7i
B.-10-7i
C.-7+10i
D.7+ 10i
Question 4
Multiple Choice
10 points
Solve x^2 +16
A.+/-2i
B.+/- 4i
C.+-16i
D.4
Question 5
Multiple Choice
10 points
Solve x^2 + 4
A.2
B.-2
C.+/-4i
D.+/-2i
Question 6
Multiple Choice
10 points
Solve 2x^2 =18 (desmos)
A.18
B.9, 2
C.9, -9
D.18, 2
Question 7
Multiple Choice
10 points
A negative discriminant means
A.2 real roots
B.1 real root
C.2 complex roots
D.1 real 1 non real
Question 8
Multiple Choice
10 points
A positive discriminant means
A.2 real roots
B.2 non real
C.1 real root
D.3 real roots
Question 9
Multiple Choice
10 points
A discriminant of -5 means
A.2 real roots
B.2 complex roots
C. 1 real root
D.5 real roots
Question 10
Multiple Choice
10 points
2a^2 - 50 Which is not a factor?
A.2
B.x+5
C.x -5
D.x+1