Substitution into Expressions (Ex. 1)

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1. Question 1

   Multiple choice

   Find the value of x² − 3 when x = −4.

2. Question 2

   Multiple choice

   Evaluate 5 − 2n when n = −3.

3. Question 3

   Multiple choice

   What is the value of ab + c when a = −2, b = 3, and c = 7?

4. Question 4

   Sequence

   Evaluate 3x² − 4 when x = −2. Step 1: x² = (−2)² = 4. Step 2: 3 × 4 = 12. Step 3: 12 − 4 = ___.

5. Question 5

   True or false

   When x = −3, the value of x² is 9 (not −9).

More exercises in this module

• Substitution into Expressions (Ex. 3)

• Algebraic Expressions & Formulas (Ex. 3)

• Linear Sequences & nth Term (Ex. 2)

• Algebraic Expressions & Formulas (Ex. 2)

• Forming & Solving Equations (Ex. 1)

• Substitution into Expressions (Ex. 2)