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Chapter 1: Q15. (page 15)

Evaluate each expression.

72

Short Answer

Expert verified

The value of the expression 72is 49.

Step by step solution

01

Step 1. Order of operations.

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

  1. Evaluate the expressions inside the bracket
  2. Evaluate the powers
  3. Multiply and/or divide
  4. Add and/ or subtract

The evaluation takes place from left to right.

02

Step 2. Evaluate all powers.

Use 7 as a factor 2 times.

72=7鈰�7

03

Step 3. Multiply from left to right.

To further evaluate multiply 7 by 7.

72=49

Therefore, the expression is equal to 49.

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