Mathematics 9
Summative Test #2

iI. Read the following itrms carefully and choose the letter of the correct answer.

1. Express 4 - ⁴ as a real number without negative exponent.
a . 16
b . 256
c . 1/256

2. Find the sum of
2 ² + 4 ⁰ .
a . 7
b . 6
c . 5

3. What is the simplified form of
4 - ² （2） - ² / 2 - ¹ ？
a . 1 / 32
b . 1 / 16
c . - 1 / 32

4. Which of the followng is the equivalent of
4m - ⁴ np - ⁹ ？
a . np - ⁹ / 4m - ⁴
b . 4n / m ⁴ p ⁹
c . n / - 4p⁹

5. How do you write the expression a³/² in radical form？
a . √ a ³
b . ³ √ a ²
c . √ a

6. How do you simplify the expression
（x¹/⁵ ）（2x ²/⁵）？
a . 2 X ³/⁵
b . 2X ³/⁸
c . X ³/⁸

7. Simplify
（12x ³ y ⁵ ）¹/²
a . 6xy
b . 2xy ² √3xy
c . √ xy

8. Simplify（x² y³）¹/²
a. xy ³/²
b . x ² y ³/²
c . y ²/³


II.
A. Write the expressions in its simplest form without uding zero and negative integral exponent.

1 . （1/2x）⁰

2 . （2a - ² /4b ²）⁰

3 . 1 / 2x - ²

4 . （4 ⁰）（ 5 - ²）

B. Express the following in radical form.

1 . （ ab）¹/ ²

2 . （3abc）¹/ ³

3 . （2x ² y）¹ / ³
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