Polynomials Factoring Descartes Rule
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 8 pts
What are the factors of 7x2 + 16x + 4?
(7x + 4) (x + 1
(7x - 2) (x - 2)
(7x + 2) (x + 2)
(7x - 2) (x + 2)
2.
MULTIPLE CHOICE QUESTION
1 min • 8 pts
Factor:
2x² + 3x - 9
2(x + 3)(x - 3)
(2x - 3)²
(x + 3)(2x - 3)
(2x + 3)(x - 3)
3.
MULTIPLE CHOICE QUESTION
1 min • 8 pts
The trinomial 4x2 -20x + 25 is factorable. Which of these is the correct factorization?
(2x+5)(2x-5)
Tags
CCSS.HSA.APR.C.4
4.
MULTIPLE CHOICE QUESTION
1 min • 8 pts
Which function is equivalent to: h(x)= 3x2 + 10x - 8?
h(x)=(3x + 2)(x + 4)
h(x)=(7x + 5)(x + 2)
h(x)=(3x - 2)(x + 4)
h(x)=(7x - 3)(x - 4)
5.
MULTIPLE CHOICE QUESTION
1 min • 9 pts
Factor 4y3 + y + 12y2 + 3 by grouping. Remember to look for Standard Form, then for common factors.
4y2(y + 3) + 3
4y3 + 12y2 + y + 3
(4y2 + 1)(y + 3)
6.
MULTIPLE CHOICE QUESTION
1 min • 9 pts
Factor 2x2 + 4x – 3x – 6 by grouping. Remember to look for Standard Form, then for common factors.
(2x – 3)(x + 2)
2x2 + x - 6
(2x + 3)(x - 2)
7.
MULTIPLE CHOICE QUESTION
1 min • 9 pts
Factor x3 – 2x – 4x2 + 8 by grouping. Remember to look for Standard Form, then for common factors.
x3 - 4x2 - 2x + 8
(x – 4)(x2 – 2)
(x – 2)(x2 – 4)
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