Results: Algebra I - Normal

You got 9 correct answers out of 10

Your score: 90.00%

Average test score: 38.04%

Time spent: 00:00:30

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Question 1: If

x = 2

, find

2 x + 1

Your answer: $5$

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Question 2: If

a = 2

and

b = 3

, find

2 (a - b) + 3 (a + b)

Your answer: $13$

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Question 3: If

t = - 3

, find

t^{2} - 2 t - 1

Your answer: $14$

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Question 4: If

a = 1

b = - 1

c = 2

find

\frac{2 a + b + c}{a + c}

Your answer: $1$

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Question 5: If

x = 4

and

y = - 5

find

y^{2} (x y + 18)

Your answer: $- 50$

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Question 6: Simplify:

x + 2 x - 5 x

Your Answer: $2 x$

Correct Answer:

- 2 x

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Question 7: Simplify:

2 a - 3 b + 2 (b - a) + 7 b

Your answer: $6 b$

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Question 8: Simplify:

5 \times 2 b - 4 (b + 1)

Your answer: $6 b - 4$

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Question 9: Expand and simplify:

4 (m + 2 n) - 5 (3 n - 2 m)

Your answer: $14 m - 7 n$

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Question 10: Expand the following expression:

3 x^{2} (4 y - 2 x)

Your answer: $12 x^{2} y - 6 x^{3}$

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