### Simplify each expression

(3-2√7)(3+2√7)

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(3-2√7)(3+2√7)

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This is a True or False problem and I need to explain the answer. 1. If we add the absolute values of -3 and -5, we get 8. using the distributive property to remove the parentheses. 2. -3(6-p) Can you help me with this problems and explain them. Thank you, your help is GREATLY appeciated.

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Write the expression below as simply as possible in its radical form. Assume that all of the variables in the expression represent positive real numbers. 3 sqrt(72t^9 w^11)

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-6x - 5y is less than or equal to -14 keywords: inequality

In a family there are two cars. In a given week, the first car gets an average of 25 miles per gallon, and the second car gets 40 miles per gallon. The two cars combined drive a total of 2100 miles in that week, for a total gas consumption of 60 gallons. How many gallons were consumed by each of the two cars that week?

(3 principle square root 10 -5)( 1-4 principle square root 5) Note: I'm not sure how to indicate principle square root with the symbol. That's why I have to write it out. Obviously, there should be a symbol where I have typed the words.

32 u^3 + 72 u^2 - 20 u

Express the following compound fraction in lowest terms 21t^2 u ------------- 5 rs^3 ------------- 7t^5 u^4 --------------- 15s^4

Express the following sum as a single fraction.Reduce the result to lowest terms whenever possible. z-9w 6z+6w - ------ + -------- 5z 5z

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3 principle square root 27 Note: I'm not sure how to graph the principle square root sign. Hence, why I wrote it out. Hope that makes sense.

A ball is dropped from the top of a 400 foot tall building and falls such that its distance from the ground at t seconds is s = -16t2 + 400 feet. What is the average velocity of the ball for the first 4 seconds?

4m^2 + 20m + 25 =