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Question (11)

QN0018370

In 5⁴, the number 4 is called the:

(A) Base
(B) Exponent
(C) Factor
(D) Coefficient

Correct Answer: B

Explanation:

The exponent shows repeated multiplication.

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Question (12)

QN0018371

Which expression represents “a multiplied by itself 3 times”?

(A) a²
(B) 3a
(C) a³
(D) a × 3

Correct Answer: C

Explanation:

a × a × a = a³.

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Question (13)

QN0018372

What is the value of 4³?

(A) 16
(B) 32
(C) 64
(D) 81

Correct Answer: C

Explanation:

4 × 4 × 4 = 64.

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Question (14)

QN0018373

Which of the following is equal to (−4)³?

(A) 64
(B) −64
(C) 16
(D) −16

Correct Answer: B

Explanation:

Product of three negative factors is negative.

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Question (15)

QN0018374

Express 5 × 5 × 7 × 7 × 7 in exponential form.

(A) 5³ × 7²
(B) 5² × 7³
(C) 5⁷
(D) 3⁵

Correct Answer: B

Explanation:

Two 5s and three 7s give 5² × 7³.

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Question (16)

QN0018375

What is the exponential form of a × a × a × b × b?

(A) a⁵b²
(B) a³b²
(C) a²b³
(D) ab⁵

Correct Answer: B

Explanation:

Three factors of a and two factors of b.

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Question (17)

QN0018376

Which of the following is equal to 2⁴ × 5² × 3⁴?

(A) 32400
(B) 16200
(C) 6480
(D) 8100

Correct Answer: A

Explanation:

Prime factorization of 32400 is 2⁴ × 5² × 3⁴.

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Question (18)

QN0018377

What is the value of (−1)⁵?

(A) 1
(B) −1
(C) 5
(D) −5

Correct Answer: B

Explanation:

Odd power of −1 remains −1.

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Question (19)

QN0018378

What is the value of (−1)⁵⁶?

(A) −1
(B) 56
(C) 1
(D) 0

Correct Answer: C

Explanation:

Even power of −1 equals 1.

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Question (20)

QN0018379

Which statement about (−2)⁴ is correct?

(A) It equals −16
(B) It equals 8
(C) It equals 16
(D) It equals −8

Correct Answer: C

Explanation:

Even power gives a positive result: 16.

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Question (11)

In 5⁴, the number 4 is called the:

Explanation:

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Question (12)

Which expression represents “a multiplied by itself 3 times”?

Explanation:

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Question (13)

What is the value of 4³?

Explanation:

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Question (14)

Which of the following is equal to (−4)³?

Explanation:

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Question (15)

Express 5 × 5 × 7 × 7 × 7 in exponential form.

Explanation:

Link:

Question (16)

What is the exponential form of a × a × a × b × b?

Explanation:

Link:

Question (17)

Which of the following is equal to 2⁴ × 5² × 3⁴?

Explanation:

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Question (18)

What is the value of (−1)⁵?

Explanation:

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Question (19)

What is the value of (−1)⁵⁶?

Explanation:

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Question (20)

Which statement about (−2)⁴ is correct?

Explanation:

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