Chapter 1: Q1. (page 12)

Evaluate each expression.
$9^{2}$

Short Answer

Expert verified

The value of the expression $9^{2}$ is 81.

Step by step solution

Step 1. Order of operations.

In order to evaluate an expression, the order of operations must be followed, which is:

Evaluate the expressions inside the bracket
Evaluate the powers
Multiply and/or divide
Add and/ or subtract

The evaluation takes place from left to right.

Step 2. Evaluate all powers.

Use 9 as a factor 2 times.

$9^{2} = 9 \cdot 9$

Step 3. Multiply from left to right.

To further evaluate multiply 9 by 9.

$9^{2} = 81$

Therefore, the expression is equal to 81.

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Evaluate each expression.
$9^{2}$

Short Answer

Step by step solution

Step 1. Order of operations.

Step 2. Evaluate all powers.

Step 3. Multiply from left to right.

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Evaluate each expression.92

Short Answer

Step by step solution

Step 1. Order of operations.

Step 2. Evaluate all powers.

Step 3. Multiply from left to right.

One App. One Place for Learning.

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Evaluate each expression.
$9^{2}$