9261
Oh honey, you want the times table of 21? Well, buckle up buttercup because here it is: 21 times 1 is 21, 21 times 2 is 42, 21 times 3 is 63, and so on. Just keep adding 21 each time and you'll have the whole shebang.
1 x 21, 3 x 7, 7 x 3, 21 x 1
1 x 21, 3 x 7, 7 x 3, 21 x 1
The answer is that the value of x is -21
Oh honey, you want the times table of 21? Well, buckle up buttercup because here it is: 21 times 1 is 21, 21 times 2 is 42, 21 times 3 is 63, and so on. Just keep adding 21 each time and you'll have the whole shebang.
21 x 21 = 441
9261
Two specific cases of pairs of numbers whose product is 21 are: 1 x 21 and 3 x 7. The ratio of their sum to their difference is: 1 x 21 ... (21+1):(21 - 1) = 22:20 = 11 : 10, and 3 x 7 ... (3+7):(7-3) = 10:4 = 5 : 2. To find a general formula, let the larger number be x and the smaller be 21/x. Their sum is x + 21/x = (x^2 +21)/x Their difference is x - 21/x = (x^2 -21)/x Ratio of sum to difference is [(x^2+21)/x] / [(x^2-21)/x] = [(x^2+21)/x] * [x/(x^2-21)] = (x^2+21)/(x^2-21) Check: This formula produces the results found above.
21 = 1 x 21, 3 x 7, 7 x 3, 21 x 1.
21 = 1 x 21, 3 x 7, 7 x 3, 21 x 1
1 x 21, 3 x 7, 7 x 3, 21 x 1
1 x 21, 3 x 7, 7 x 3, 21 x 1
X+14=-21 X=-21-14 X=-35 is your answer.
They are:1 x 212 x 213 x 214 x 21....48 x 2149 x 2150 x 21
The answer is that the value of x is -21
1 x 21, 3 x 7 = 21