AnswersFL-1200310-Algebra 1Factoring Polynomials: Difference of Squares

Factoring Polynomials: Difference of Squares — Unit test Answers

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What is the greatest common factor of 8x and 40y?

A
8
B
8xy
C
320
D
320xy
22
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The expression y2 – 10y + 24 has a factor of y – 4. What is another factor of y2 – 10y + 24?

A
y – 20
B
y – 14
C
y – 8
D
y – 6
23

The diagram represents a difference of squares.

Question illustration
A
(m – 2)(m + 18)
B
(m – 3)(m + 3)
C
(m – 4)(m + 9)
D
(m – 6)(m + 6)
24

A square with an area of A2 is enlarged to a square with an area of 25A2. How was the side of the smaller square changed?

A
The side length was increased by 5.
B
The side length was multiplied by 5.
C
The side length was increased by 10.
D
The side length was multiplied by 10.
25

Candy draws a square design with a side length of x inches for the window at the pet shop. She takes the design to the printer and asks for a sign that has an area of 16x2 – 40x + 25 square inches.

Question illustration
A
4x + 5
B
4x – 5
C
8x + 5
D
8x – 5

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