Unit 7: Expressions, Equations, and Exponents
Name: _________________
Date: __________ Period: ___
QUIZ 2
Teacher: ________________
1. Simplify the following expression. Use the distributive property to combine like terms
where appropriate.
7 x( x 4 y 2 )
4 y 5 x 3 (2 x 2 )
2
–
x
(
3
x
)
+
+
–y
x2 y
y4
x2
2. For the verbal instructions given:
• Write a variable expression to represent the instructions.
• Then, sketch an area model that corresponds to the verbal instructions.
a. Add 1 to n, then multiply the result by 2.
b. Multiply n by 2 and add 1 to the result.
© America’s
Choice, Inc.
Quiz 2: Page 1 of 2
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QUIZ 2
3. Jamal works at a bookstore. He is putting copies of two kinds of books on a shelf. The first
book has a width of exactly 2 centimeters. The second book has a width of exactly 2 inches.
}
2 in
}
2 cm
Jamal wants to know the combined width of x copies of the first book and y copies of the
second book. [Note: 1 in = 2.54 cm]
a. Express the combined width in centimeters.
b. Express the combined width in inches.
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Quiz 2: Page 2 of 2
© America’s
Choice, Inc.