1. 2d + 3
2. 8/c
3. 4p - 8
4. (n + 3) - 8
5. t - 4
6. 6(c + 3)
7. 1/3b + 8
8. (r - 3)/8
9. 3(1/4t)
10. 3(8 + f)
11. t/8
12. 3 + (c - 8)
4n² - 15n + 14<span> is always the product of two numbers, for it to be prime number, one of these factors must be either 1 or -1.
Case n - 2 = 1
That would be n = 3
Then </span>4n² - 15n + 14<span> = 5 , which is prime.
Case n - 2 = -1
That would be n = 1
Then </span>4n<span>² - 15n + 14 = 3, which is also prime.
Case 4n - 7 = 1
That would be n = 2 and that makes other factor (n-2) zero so it's not prime
Case 4n-7 = -1
That would be n = 3/2 which is not integer, so </span>4n<span>² - 15n + 14 will not be interger.
For any other n values, </span>4n<span>² - 15n + 14 will be composite number since it is product of two factors.
Therefore we are left with n = 1 and n = 3; only two values of n.</span>
Answer:
626,140
or
600,000+20,000+6,000+100+40
Step-by-step explanation:
