Chapter 1: Q2. (page 18)

Describe in order the steps you would take to evaluate the expression
$12 {(x - 3)}^{2} w h e n x = 5$

Short Answer

Expert verified

The value of expression is 48

Step by step solution

Step-1 – Substitute x by 5

To evaluate the expression substitute 5 for x and solve further as shown below

$12 {(x - 3)}^{2} = 12 {(5 - 3)}^{2}$

Step-2 – Now subtract 3 from the equations

In the expression we subtract 3 from the equation

$\begin{matrix} 12 {(x - 3)}^{2} = 12 {(5 - 3)}^{2} \\ 12 {(x - 3)}^{2} = 12 {(2)}^{2} \end{matrix}$

Step-3 – Square and multiply

Now firstly square and multiply the outcome

$\begin{array}{l} 12 {(x - 3)}^{2} = 12 {(5 - 3)}^{2} \\ 12 {(x - 3)}^{2} = 12 {(2)}^{2} \\ 12 {(x - 3)}^{2} = 12 (4) \\ 12 {(x - 3)}^{2} = 48 \end{array}$

So, the value of the expression is 48.

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Describe in order the steps you would take to evaluate the expression
$12 {(x - 3)}^{2} w h e n x = 5$

Short Answer

Step by step solution

Step-1 – Substitute x by 5

Step-2 – Now subtract 3 from the equations

Step-3 – Square and multiply

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Describe in order the steps you would take to evaluate the expression 12(x−3)2 when x=5

Short Answer

Step by step solution

Step-1 – Substitute x by 5

Step-2 – Now subtract 3 from the equations

Step-3 – Square and multiply

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Applied Mathematics

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Study anywhere. Anytime. Across all devices.

Describe in order the steps you would take to evaluate the expression
$12 {(x - 3)}^{2} w h e n x = 5$