Answer:

Step-by-step explanation:
The standard form of a complex number:


Factoring out (x-3), we get (7x^2+5) (x-3). That is your answer, I hope this helps :).
Answer:
The quantity of ground meat he use for hamburgers is 2
pounds
Step-by-step explanation:
Given as :
The total quantity of ground meat bought to make hamburgers = 2 
Or, The total quantity of ground meat bought to make hamburgers =
pound
The quantity of ground meat left after use =
pound
Now, let The quantity of ground meat used for hamburgers = x pound
So, x = The total quantity of ground meat bought - The quantity of ground meat left
Or, x =
pound -
pound
Or, x =
pound
I.e x =
∴ x = 2
pounds
Hence The quantity of ground meat he use for hamburgers is 2
pounds . Answer
An easy way (you must put the numbers in the correct side)
3 2 you cant subtract 5 from 2 so u carry one
-1 5 the 3
2 ¹3. it should look like this.Now u do 13-5=8
-1 5
2 ¹3. now u do 2-1=1
- 1 5
= 1 8
your final answer is 18.
This is applying the formula

We have a slight problem, though, because we are measuring rate in miles per hour, and we are measuring time in minutes. To make this problem solvable, we need to convert to either miles per minute or convert the time to hours. I'm going to convert the 15 minutes into hours:

Now that all of the units match, we have:

You can finish from there I'm sure.