The following pictures should explain well enough how to solve this would take to long to write out the end answer however are x=-12.5 and y=34.75 the steps are the following pictures Hope this helps!=)
7x(√x - 7√7) Multiply √7x to "√x" and "-7√7" respectively:
√7x*√x - 7√7*√7x
First is to simplify: √7x² - 7√7²x
Extract the squares: x√7 - 7*7√x
Then, we simplify: x√7 - 49√x
After simplifying the equation, I got the answer x√7 - 49√x.
Answer:
96
Step-by-step explanation:
First divide 360 by 2.
Then divide 180 by 5 and that is how many 5 pound bags he will use.
Then divide 180 again by 3 and that is how many 3 pound bags he will use.
Answer: 
Step-by-step explanation:
You can calculate the area of a kite with the following formula:

Where
is the length of a diagonal and
is the length of the other diagonal.
In this case, you can identify that:

Therefore, the final step is to substitute the values into the formula.
Then, the area is: