Calculate Rectangle Area: Using Distributive Property with (9+4)(3+2)

Question

Calculate the area of the rectangle below using the distributive property.

00:11 Let's find the area of the rectangle using the distributive law.

00:17 We'll use the formula: Area equals length times width.

00:21 Remember, pay attention to the parentheses!

00:25 We're using the distributive law, which means we multiply each term by each term.

00:42 Alright, let's calculate these products together.

01:00 Now, it's time to add them up.

01:06 And that's how we find the solution to our problem!

The area of a rectangle is equal to its length multiplied by the width.

We begin by writing the following exercise using the data shown in the figure:

$(3+2)\times(9+4)=$

We solve the exercise using the distributive property.

That is:

We multiply the first term of the left parenthesis by the first term of the right parenthesis.

We then multiply the first term of the left parenthesis by the second term of the right parenthesis.

Now we multiply the second term of the left parenthesis by the first term of the left parenthesis.

Finally, we multiply the second term of the left parenthesis by the second term of the right parenthesis.

In the following way:

$(3\times9)+(3\times4)+(2\times9)+(2\times4)=$

We solve each of the exercises within the parentheses:

$27+12+18+8=$

Lastly we solve the exercise from left to right:

$27+12=39$

$39+18=57$

$57+8=65$