Roots of an Equation
Authored by Barbara White
Mathematics
10th Grade
CCSS covered
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9 questions
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1.
MULTIPLE SELECT QUESTION
2 mins • 5 pts
1. One of the roots of the polynomial equation
2x3 + 9x2 – 33x + 14 = 0 is 2. Find the other roots.
A. 1/2 and 7
B. 1/2 and - 7
C. - 1/2 and 7
D. - 1/2 and - 7
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
3. Which of the following is NOT a root of x(x + 3)(x + 3)(x – 1)(2x + 1) = 0?
A. – 3
B. – 1
C. – 1/2
D. 1
Tags
CCSS.HSF-IF.C.7C
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
4. What must be multiplied to (x2 + 2x + 1) to get (x3 – 2x2 – 7x – 4)?
A. (x +2)
B. (x – 2)
C. (x + 4)
D. (x – 4)
Tags
CCSS.HSA.APR.D.6
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
6. What is the factored form of the polynomial equation x2 – 225 = 0?
A. (x + 15)(x + 15)= 0
B. (x + 15)(x – 15)= 0
C. (x – 15)(x – 15)= 0
D. none of these
Tags
CCSS.HSA-REI.B.4B
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
7. The following are roots of 2x3 – x2 – 8x +4 = 0 EXCEPT:
A. – 2
B. – 1/2
C. 1/2
D. 1/3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
8. What are the roots of the function 𝑦 = 𝑥2 + 𝑥 – 6?
A. 3 𝑎𝑛𝑑 2
B. −3 𝑎𝑛𝑑 – 2
C. 3 𝑎𝑛𝑑 – 2
D.−3 𝑎𝑛𝑑 2
Tags
CCSS.HSA-SSE.B.3B
CCSS.HSF-IF.C.8A
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
9. Find the value of k so that (x – 1) is a factor of 2x3 – kx2 + 2x + 3.
A, - 8
B. - 7
C. 7
D. 8
Tags
CCSS.HSA.APR.B.2
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