Pre-Algebra Examples

 $\begin{array}{r} l = & a s \\ w = & s d \end{array}$

Step 1

The area of a rectangle is equal to the length times the width.

$(l e n g t h) \cdot (w i d t h)$

Step 2

Substitute the values of the length $l = a s$ and width $w = s d$ into the formula for the area of a rectangle.

$a s \cdot (s d)$

Step 3

Multiply $s$ by $s$ by adding the exponents.

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Step 3.1

Move $s$ .

$a (s \cdot s) \cdot d$

Step 3.2

Multiply $s$ by $s$ .

$a s^{2} \cdot d$

$a s^{2} d$