AnswersFL-1200330-Algebra 2 Sem 1 - FlexSolving Quadratic Equations by Factoring

Solving Quadratic Equations by Factoring Answers

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The hypotenuse of a right triangle is 52 in. One leg of the triangle is 8 in. more than twice the length of the other. What is the perimeter of the triangle?

A
20 in.
B
26 in.
C
120 in.
D
138 in.
2
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Use the zero product property to find the solutions to the equation x2 + 12 = 7x.

A
x = –4 or x = 3
B
x = –4 or x = –3
C
x = –3 or x = 4
D
x = 3 or x = 4
3

The profit a company makes from producing x tabletops is modeled by the equation P(x) = 480x – 2x2. For what number of tabletops does the company make a profit of $0?

A
100 tabletops
B
120 tabletops
C
240 tabletops
D
480 tabletops
4

The solutions to the equation are or

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5

What are the solutions to the equation (x – 6)(x + 8) = 0?

A
x = –6 or x = 8
B
x = –6 or x = –8
C
x = 6 or x = –8
D
x = 6 or x = 8
6

Use the zero product property to find the solutions to the equation (x + 2) (x + 3) = 12.

A
x = –6 or x = 1
B
x = –3 or x = –2
C
x = –1 or x = 6
D
x = 2 or x = 3
7

What are the solutions to the equation 3(x – 4)(x + 5) = 0?

A
x = –4 or x = 5
B
x = 3, x = 4, or x = –5
C
x = 3, x = –4, or x = 5
D
x = 4 or x = –5
8

A rectangular patio is 9 ft by 6 ft. When the length and width are increased by the same amount, the area becomes 88 sq ft. Ginger is using the zero product property to solve the equation (6 + x)(9 + x) = 88. What does the value of x in her solutions represent?

A
one possible length and one possible width
B
two possible amounts for the widths
C
two possible amounts for the lengths
D
two possible amounts by which the dimensions were changed
9

The square of a number is 12 less than 7 times the number. What is the number?

A
–4 or –3
B
–4 or 3
C
–3 or 4
D
3 or 4
10

The square of 9 less than a number is 3 less than the number. What is the number?

A
–12 or 7
B
–12 or –7
C
–7 or 12
D
7 or 12

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