SOLUTION: Find the area of a room that has a width of (x+3) and a length of (2x-5). (2.0 points)
A) a. 3x-2
B) b. 3x+8
C) c.
D) d.
2.
Find the perimeter of a room with a length of (2x-
Algebra ->
Polynomials-and-rational-expressions
-> SOLUTION: Find the area of a room that has a width of (x+3) and a length of (2x-5). (2.0 points)
A) a. 3x-2
B) b. 3x+8
C) c.
D) d.
2.
Find the perimeter of a room with a length of (2x-
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Question 313467: Find the area of a room that has a width of (x+3) and a length of (2x-5). (2.0 points)
A) a. 3x-2
B) b. 3x+8
C) c.
D) d.
2.
Find the perimeter of a room with a length of (2x-3) and a width of (x+7). (2.0 points)
A) a. 3x+4
B) b. 6x+8
C) c.
D) d.
3.
A type of division of polynomials which can be done without the use of variables is called __?__ (2.0 points)
A) a. long division
B) b. factoring
C) c. synthetic division
D) d. rational expressions
4.
What is the degree of the polynomial below?
(2.0 points)
A) a. 0
B) b. 1
C) c. 2
D) d. 3
5.
What is one of the factors of the polynomial below?
(2.0 points)
A) a. (x-y)
B) b.
C) c.
D) d. The polynomial is prime and cannot be factored
6.
The following problem was factored by grouping. What mistake was made in the problem?
(2.0 points)
A) a. The problem cannot be factored into 2 groups of 2 factors.
B) b. The common factor of is not .
C) c. The factor in the last step cannot be combined together as a factor.
D) d. The x-3 factor in the last step should not be squared.
7.
Solve the quadratic equation
y2 - 15 = 0
A) mathml equation
B) mathml equation
C) mathml equation
D) mathml equation
8.
Solve the quadratic equation
x 2 - 6x + 9 = 0
A) 3
B) -3
C) -3 and 3
D) 4.5
9.
Add:
(6x - 4) + (2x + 1)
10.
Subtract:
(5x2 - 2x + 3) - (4x2 + 6x - 8)
A) mathml equation
B) mathml equation
C) mathml equation
D) mathml equation
11.
Multiply:
5x3y2 (3x2 - 4y). Write your answer using ^ for exponents.
12.
Multiply:
(5x + 10y) (x - 2y). Write your answer using ^ for exponents.
13.
Multiply:
(3x - 2y) (4x2 - 2x + 2). Write your answer using ^ for exponents.
14.
Divide:
15.
Divide:
16.
Divide:
State the remainder.
17.
Solve:
y2 - 6 = y
Please show your work.
A) 3
B) -2
C) -3
D) 2
18.
Solve:
3x2 - 11x + 6 = 0
A) -2/3
B) 2/3
C) 3
D) -3
19.
Factor completely:
(x2 - 9x + 20)
A) (x-4)(x-5)
B) (x-4)(x+5)
C) (x+4)(x-5)
D) (x+4)(x+5)
20.
Factor completely:
(3y3 + 15y2 + 12y)
21.
Factor completely:
40y4 - 5y.
22.
Solve:
3x2 - 11x + 6 = 0
Which of these is not a factor of the polynomial above?
A) 3x-2
B) x-3
C) x+3
D) 3x+2
