There are two correct answers:
. . . positive 21
. . . negative 21
441
Take the square root of both sides. x2 = 441 So x = 21
To find out the answer to your question, do 63 times 7. If you are not sure if the quotient you got was correct, then divide it by seven. The dividend should be 63. I'll tell you the answer; It is 441.
That depends upon the other number(s) with which 441 has common factors - it will be the highest factor that is common to 441 and the other number(s). It will be one of 441's factors, that is one of: 1, 3, 7, 9, 21, 49, 63, 147, 441
No, 441 is though (it is 21 squared)
1 * 441 equals 441
9 times 49 equals 441
(147,3)(63,7)(49,9)
49*9
441 x 2 = 882
3 does 441/3 =147 times
Each of these factor pairs (multiply the numbers in parentheses) equals 441: (1, 441) (3, 147) (7, 63) (9, 49) (21, 21)
Any number can be multiplied to get the answer 441. For example 5 can be multiplied by 88.2 If the question was which number can be multiplied by itself, the answers are: -21 and +21
83 and 147
481
you have to make it into a one variable equation 21 * 21 = 7 * 7 * X 441 = 49 * X 441/49 = X 9 = X
441