6849 and 0213
(x+9)^2 =x^2 + 9 X^2 + 18x + 81 = X^2 +9 18X + 72 = 0 18X = -72 X =- 4
-2
-2
It is: 3
(x + 4)2
1/(any number more than 0.5) 2/(any number more than 1) 3/(any number more than 1.5) 4/(any number more than 2) 5/(any number more than 2.5) 6/(any number more than 3) . . etc.
Total number of possible outcomes = 6.Number of them that are more than 2 = 4. (3, 4, 5, and 6)Probability of rolling more than 2 = 4/6 = 2/3 = 662/3%
If the number is represented by X, then '4 more than a number' is represented by (X+4).
2 2 3 4
n/2 + 4
All composite numbers have more than two factors. The smallest such number is 4, which is equal to 2 x 2. 4 has three factors: 1, 2, and 4.
Every prime number except 2 must be odd. This is because if it were even it would be divisible by 2 and so wouldn't be a prime number. The next point to note is that all odd numbers are one more or one less than a multiple of 4. Because 2 more than a multiple of 4 is even, and 3 more than a multiple of 4 is the same as 1 less than the multiple of 4 above. Thus every prime number except 2 must be 1 more or 1 less than a multiple of 4.
20
You are 4, with factors 1, 2 and 4.
It is 4692.
4 more than 15 is 4 + 15 = 19.