Finding Zeros of Polynomials by Factoring
Authored by Anthony Clark
Mathematics
11th Grade
CCSS covered
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Identify the number of roots:
x3+4x2-11x-30
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What are the zeros for this function?
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Factor: 27x3 + 8. Then describe how to find the three solutions.
(3x + 2)(9x2 - 6x + 4). Next, set (3x + 2) equal to 0 and solve. Finally, use the Quadratic Formula for (9x2 - 6x + 4).
(9x + 2)(3x2 + 18x + 4). Next, set (9x + 2) equal to 0 and solve. Finally, use the Quadratic Formula for (3x2 + 18x + 4).
(3x2+4)(9x + 2). Next, set (3x2 + 4) equal to 0 and solve. Finally, set (9x + 2) equal to 0 and solve.
(27x + 8)(x2 - 216x + 64). Next, set (27x + 8) equal to 0 and solve. Finally, use the Quadratic Formula for (x2 - 216x + 64).
Tags
CCSS.HSA.APR.C.4
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the following equation:
x4 + x2 - 90 = 0
3, -3, ±√10
3, -3
±√10
3
Tags
CCSS.HSA-REI.B.4B
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find all zeros of the polynomial function P(x) = x3+6x2+9x+54
6, 3, -3
-6, 3, -3
-6, 3i, -3i
6, 3i, -3i
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Write x3 + 9x2 + 18x in factored form.
x(x + 6)(x + 3)
x(x + 9)(x + 2)
x(x + 6)
x(x - 6)(x - 3)
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