Answer:

Step-by-step explanation:
Using foil method, Multiply the first term

Next, Multiply the Outer term in each parenthesis. (2x^2 and 7


Then, Multiply the Inner Terms (-3x,-4,7) in each parenthesis


Then multiply the last term (-4 and 7).

Combine it you have

which simplify to

Answer:
1/18
Step-by-step explanation:
First of all, it works well to consolidate the minus signs:

We can multiply the first fraction by 9/9 and the second one by 2/2 so they have a common denominator.

The area of the circle is 113.1 !!
Answer:
0.667
Step-by-step explanation:
3x = 2
3x/3 = 2/3
x = 2/3
0.66666666666666666666666666666666666666666666666.....
Answer: 0.667