Algebra Unit 7 Polynomials Review

Algebra Unit 7 Polynomials Review

9th Grade

8 Qs

quiz-placeholder

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Algebra Unit 7 Polynomials Review

Algebra Unit 7 Polynomials Review

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

CCSS
HSF-IF.C.7C, HSA.APR.C.4

Standards-aligned

Created by

Anthony Clark

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8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which expression is equivalent to 64 − 9x2?

(32)2 − (3x)2

(32)2 + (−3x)2

(8)2 − (3x)2

(8)2 + (−3x)2

Tags

CCSS.HSA.APR.C.4

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The polynomial 24x3 − 54x2 + 44x − 99 is factored by grouping.

6x + 11

6x − 11

6x2 + 11

6x2 − 11

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A rectangle has an area of (x2 − 17x + 72) square units. Since the area of a rectangle is determined using the formula, A = lw, what could be the length and width of the rectangle?

length = (x − 8) units and width = (x − 9) units

length = (x + 9) units and width = (x + 8) units

length = (x − 6) units and width = (x − 12) units

length = (x + 12) units and width = (x + 6) units

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which polynomial is prime?

x2 + x + 1

x2x – 2

x2 – 12x + 11

x2 + 2x – 8

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Profit is the difference between revenue and cost. The revenue is modeled by the polynomial 2x3 + 30x – 130. The cost is modeled by 2x3 – 3x – 520. The variable x represents the number of skateboards sold. What expression represents the profit?

27x – 650

27x + 390

33x – 650

33x + 390

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Omar grouped the terms and factored the GCF out of the groups of the polynomial 3x3 – 15x2 – 4x + 20. His work is shown.

Step 1: (3x3 – 15x2) + (–4x + 20)

Step 2: 3x2(x – 5) + 4(–x + 5)

Omar noticed that he does not have a common factor. Which accurately describes what Omar should do next?

Omar should realize that his work shows that the polynomial is prime.

Omar should go back and regroup the terms in Step 1 as (3x3 – 15x2) – (4x + 20).

In Step 2, Omar should factor only out of the first expression.

Omar should factor out a negative from one of the groups so the binomials will be the same.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

a = -6, 0, 5

a = 6, 0, -5

a = 6, -5

a = -6, 5

Tags

CCSS.HSF-IF.C.7C

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