Answer:
(x − 7)(x + 3)
Step-by-step explanation:
Step 1: You need to find out what to numbers add up to −4 and multiply −21?
−7 and 3
Step 2: Just rewrite the expression using the above and you're done!
(x − 7)(x + 3)
Answer:

Step-by-step explanation:
Find two numbers whose quotient is -1 and the subtraction of the first minus the second is -3/2
Let two numbers are x and y. When they are divided the quotient is -1. So,

It can also be written as :
x = -y ....(1)
The subtraction of first minus the second is -3/2
.

Use equation (1) in (2),

From equation (1) : 
Hence, two numbers are
.
You can just do it by having enough building blocks lol
Answer:
-14.4, -6.8, 23/4, -1.9, 0, 5.4
Step-by-step explanation
lowest to highest
Prime numbers below 30: 1, 3, 5, 7, 11, 13, 17, 19, 23, 29
2 prime numbers that sum up to 30:
1 and 29
7 and 23
13 and 17
The greatest possible product will be 13 x 17 = 221
Answer: The two prime numbers are 13 and 17