Write an algebraic expression that represents the area

Three times the sum of 56 and seven. Some crazy numbers here. Now the next one, and once again, pause it if you get inspired, and I encourage you to. Anyway, hopefully you enjoyed that as much as I did.

So this first one says minus 19, divided in half. So, three times 56, and seven.

And someone said, "Quick! Let me do that in a different color. So this right over here is the sum of three times 56, and seven. And they were to show you two different expressions.

And once again, I could write it as four times as large as the expression, let me do that in that purple color, as the expression minus And for any of these statements, if you get so inspired, and I encourage you to get so inspired, pause the video and see if you can write them as mathematical expressions.

Translating expressions with parentheses

You could just write three, and then open parentheses, 56 plus seven, and this, too, is three times the sum of 56 and seven. It makes it a little bit cleaner, a little bit more obvious.

So we could write it like that. Three times 56, plus seven. In fact, the standard way to interpret this is that you would do the multiplication first. So, to make sure that you do the 56 and the seven first, you want to put this parentheses around it.

Four times as large as the expression minus We want to do three times this sum. You would do three times 56, and then add seven, which is going to give you a different value, and you could try it out, than if you were to add the 56 and the seven first.

The parentheses are very, very, very important here, because if we just did 43 minus 16 plus 11, the standard way of interpreting this would be 43 minus 16, and then adding 11, which would give you a different value than 43 minus the sum of 16 and As a member, you'll also get unlimited access to over 75, lessons in math, English, science, history, and more.

Plus, get practice tests, quizzes, and personalized coaching to help you succeed. Sal interprets written statements and writes them as mathematical expressions.

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Write an algebraic expression that represents the area
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