Lesson 5.4: Rational Equations Answers
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21
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What are the solutions to the equation?
A
Option
B
Option
C
Option
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1 x + 3
Answers:
Blank 1:-8
Blank 2:-4
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x = 1 is a solution.x = 0 is a solution.x = –1 is a solution.x = –6 is a solution.
A
x = 1 is a solution.B
x = 0 is a solution.C
x = –1 is a solution.D
x = –6 is a solution.24
Name the true solution(s) to the equation.X x = 0x = 1x = 8x = 0, x = 1, and x = 8 x = 1 and x = 8There are no solutions.
A
x = 0B
= 1C
= 8D
= 0, x = 1, and x = 8E
= 1 and x = 8F
There are no solutions.25
Name the extraneous solution(s) to the equation.x = 0x = 1x = 8x = 0, x = 1, and x = 8X x = 1 and x = 8There are no extraneous
A
= 0B
= 1C
= 8D
= 0, x = 1, and x = 8E
x = 1 and x = 8F
There are no extraneous26
Question text not available
A
Option
B
Option
C
Option
27
Question text not available
Answer:
No. Although solving the equation gives a = -2, substituting -2 makes two denominators in the original equation equal to zero. So -2 is an extraneous solution, and the original equation has no solution.
28
Which of the following did you include in your answer?
A
No, the student did not check the solution to the derived equation in the original equation.B
No, a possible solution is a = –2, but it does not check in the original equation because it makes two of the denominators equal to zero.C
No, a = –2 is an extraneous solution, and there is no solution to the original rational equation.29
Question text not available
A
Option
B
Option
C
Option
D
Option
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