Basic Math Examples

 $\begin{array}{r} h = & L \\ l = & L \\ w = & H \end{array}$

Step 1

The surface area of a box is equal to the sum of the areas of each side of the box.

$2 \cdot (l e n g t h) \cdot (w i d t h) + 2 \cdot (l e n g t h) \cdot (h e i g h t) + 2 \cdot (w i d t h) \cdot (h e i g h t)$

Step 2

Substitute the values of the length $l = L$ , the width $w = H$ , and the height $h = L$ into the formula.

$2 \cdot L \cdot H + 2 \cdot L \cdot L + 2 \cdot H \cdot L$

Step 3

Multiply $L$ by $L$ by adding the exponents.

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Step 3.1

Move $L$ .

$2 L H + 2 \cdot (L \cdot L) + 2 \cdot H \cdot L$

Step 3.2

Multiply $L$ by $L$ .

$2 L H + 2 \cdot L^{2} + 2 \cdot H \cdot L$

$2 L H + 2 L^{2} + 2 H L$

Step 4

Add $2 L H$ and $2 H L$ .

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Step 4.1

Move $L$ .

$2 L^{2} + 2 H L + 2 H L$

Step 4.2

Add $2 H L$ and $2 H L$ .

$2 L^{2} + 4 H L$