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lesson 21: Algebra I #1.4a, Evaluating with Parentheses

Algebra 1
Lesson 21:
lesson 21: Algebra I #1.4a, Evaluating with Parentheses
lesson 21: Algebra I #1.4a, Evaluating with Parentheses

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Question 1 of 10

1. Question

What is the difference in value between the expressions (4 * 5)^2 and 4 * 5^2?

(4 * 5)^2 equals 400, while 4 * 5^2 equals 100.
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(4 * 5)^2 equals 100, while 4 * 5^2 equals 400.
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Both expressions equal 100.
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Both expressions equal 400.
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Question 2 of 10

2. Question

In the expression 4 * 5^2, which base is directly affected by the exponent of 2?

Both 4 and 5
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Neither 4 nor 5
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Only 5
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Only 4
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Question 3 of 10

3. Question

Evaluate the expression (2 + x)(y – 1) when x = 3 and y = 5.

20
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16
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24
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15
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Question 4 of 10

4. Question

Evaluate the expression (x – 5)^3 when x = 6.

9
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27
Correct Incorrect Correct answer

3
Correct Incorrect Correct answer

1
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Question 5 of 10

5. Question

The lesson uses the analogy of a ‘mother bird feeding her babies in a nest’ to explain which algebraic property?

Associative Property
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Identity Property
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Distributive Property
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Commutative Property
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Question 6 of 10

6. Question

Using the distributive property, how is the expression 4(a + 12) expanded?

4 + a + 12
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4a + 48
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4a * 48
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4a + 12
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Question 7 of 10

7. Question

When simplifying the expression 2 + 6 / (5 * 2^2), what is the final simplified mixed fraction?

2 and 3/10
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1 and 3/5
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2 and 6/10
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2 and 1/2
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Question 8 of 10

8. Question

In the expression (3x)^3 – x, if we substitute x = 2, what is the correct first step according to the order of operations?

Multiply 3 by 2 inside the parentheses.
Correct Incorrect Correct answer

Cube the number 3.
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Cube the number 2.
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Subtract 2 from the final result.
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Question 9 of 10

9. Question

What is the correct evaluated value of the expression (3x)^3 – x when x = 2?

52
Correct Incorrect Correct answer

216
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214
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208
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Question 10 of 10

10. Question

According to the end of the lesson, what mathematical property will be covered in the next video?

Commutative property
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Associative property
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Distributive property
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Identity property of multiplication
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