29
44
It is 44. The reason is that 44 = 11 X 4 and 11 + 4 =15.
-51
To factor a trinomial (three-term expression) of the form n2+bn+c, find the two numbers h and k that are factors of c and add up to b. Then, write those numbers in this template: (n+h)(n+k) For the trinomial n2+7n-44, c = -44 and b = 7. The two numbers that are factors of -44 and add up to 7 are 11 and -4. So, the factored form would be (n+11)(n-4).
3 numbers that add up to 45 = 48
44
584
25
36
28
Add up all the numbers and divide the sum by 4.Then you get the answer.