Chapter 1: Q20. (page 9)

Find the value of each expression
$2 (6^{2} - 9)$

Short Answer

Expert verified

Value of $2 (6^{2} - 9)$ is 54

Step by step solution

- Order for simplification

To evaluate any expression involving more than one operation, follow the below order of operations:

First evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
Evaluate the exponents.
Perform Multiplication and division from left to right.
Perform addition and subtraction from left to right.

- Simplify expression inside grouping symbol

To evaluate the value of the given expression, first simplify the expression inside the parenthesis by expand the exponent and subtract 9 from it as shown below

$\begin{matrix} 2 (6^{2} - 9) = 2 (36 - 9) \\ = 2 (27) \end{matrix}$

- Multiply 2 with 27

Now, to simplify further multiply the numbers to get

$2 (27) = 54$

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Find the value of each expression
$2 (6^{2} - 9)$

Short Answer

Step by step solution

- Order for simplification

- Simplify expression inside grouping symbol

- Multiply 2 with 27

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Find the value of each expression262-9

Short Answer

Step by step solution

- Order for simplification

- Simplify expression inside grouping symbol

- Multiply 2 with 27

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Geometry

Statistics

Applied Mathematics

Theoretical and Mathematical Physics

Probability and Statistics

Decision Maths

Study anywhere. Anytime. Across all devices.

Find the value of each expression
$2 (6^{2} - 9)$