Sigchi4life
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1. Simplify the expression.

(x + 3y − 5z) − (x − 2y + 4z)1  =

Classify the answer by number of terms and degree.

1st-degree monomial

1st-degree binomial

1st-degree trinomial

2nd-degree binomial

2nd-degree trinomial

2. Simplify the expression.

3(x − 1) − 2(x2 + 2x + 3) − 5(x + 9)1

Classify the answer by number of terms and degree.

1st-degree monomial

1st-degree binomial

1st-degree trinomial

2nd-degree binomial

2nd-degree trinomial

3. Simplify the expression.

(3x − 1)(x2 + 3x − 4) =

4. Simplify the expression.

(x − 2)(2x − 3) − (x + 1)(x − 4)

5. If possible, completely factor the expression. (If the
expression is not factorable, enter NF.)

x2 − 8x − 9

6. Completely factor the expression.

x2 + 7x + 10

7. Factor the expression by using areas.

x2 + x − 42

8. Let x = 2 and y = 4. Find the value of the
given capital letter.

N = x2 + 2xy + y2
+ 1

N = 1

9. Solve the equations.

(a)  3L /4  = 7

L =

(b)  2 = 2M/3  + 8

M =

9. Solve the equation.

3(W + 4) − 4(W + 5) = 0

W = 1

comma-separated list. If there is no real solution, enter NO REAL SOLUTION.)

x2 − 14x + 42 = 0x = 1

11. Young's Rule for calculating a child's dosage for
medication is

CHILD'S DOSE =

 AGE OF CHILD AGE OF CHILD + 12

(a) If an adult's dose of a particular medication is 100 mg,
what is the dose for a 6-year-old child? (Round your answer to one decimal
place.)

1
mg

(b) If a 12-year-old child's dose of a particular medication is 10 mg, what is

2
mg

12. A poll was taken of 100 students at a commuter campus to
find out how they got to campus. The results were as follows:

 32 said they drove alone. 33 rode in a carpool. 31 rode public transportation. 4 used both carpools and public transportation. 7 used both a carpool and sometimes their own cars. 5 used buses as well as their own cars. 2 used all three methods.

How many used none of the above-mentioned means of transportation?

1
students

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