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A2-Mod 7 Finding Rational/Complex solutions of Polynomials

Authored by Beldina Colbert

Mathematics

9th - 12th Grade

CCSS covered

Used 60+ times

A2-Mod 7 Finding Rational/Complex solutions of Polynomials
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18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Find all the real zeros of the function 
f(x) = 2x3 - 19x2 + 38x + 24 given that x-4 is a factor.

x = 1/2, -6
x = -1/2, 6
x = 4, -1/2, 6
x = -4, 1/2, -6

Tags

CCSS.HSA.APR.B.2

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

What are the zeros of the function?

4,1
3,1,-2,-5
-3, -1, 2, 5
-2,4

Tags

CCSS.HSF-IF.C.7C

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Factor:
 x3-12x2+47x-60=0 when 5 is a root.

(x-3)(x-4)(x-5)=0
(x+1)(x-4)(x-5)=0
(x-3)(x-4)(2x-5)=0
(x-5)(x-4)(x-5)=0

Tags

CCSS.HSA.APR.B.2

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Find the roots of 0=x3-4x2+2x-8

±2,4
±2i,4
±i√2,4
±√2,4

Tags

CCSS.HSA.APR.B.3

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find all the real-number roots for the function below. Use any method you like.

f(x)=6x3−17x2+11x−2

x = ½, ⅓, 2

x = ¾, ½, 1

x = ⅙, ⅚, 2

x = 1, 2, 3

Tags

CCSS.HSA.APR.B.2

CCSS.HSA.APR.B.3

CCSS.HSA.REI.D.11

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find a polynomial function of degree 3 that has zeroes at
x=1, 2, and 3

x3 - 6x2 + 11x - 6
x3 - 11x2 - 6x - 6
x3 - 6x2 - 6x - 6
x3 - 11x2 - 11x - 11

Tags

CCSS.HSA.APR.B.3

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find all the real-number roots for the function below. Use any method you like.

f(x)=18x4+3x3−17x2+17x−55

x = 1, -5/2, 2 +- √7 / 3

x = 1, -3/2, 3 +- √5 / 2

x = 1, -1/2, 4 +- √3 / 5

x = 2, -5/2, 5 +- √7 / 4

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