0 It's the only number when added/subtracted/multiplied/divided by itself doesn't change in value.
('x' times 'x') plus 'x' = 30x2 + x - 30 = 0(x + 6) (x - 5) = 0x = -6and/orx = 5
-0.5625
Double means something is multiplied by two or added to itself
43
A number multiplied by itself added to itself equals 30. What are the two possible numbers?
The number zero! Multiplied by itself = 0 x 0 = 0 Added to itself = 0 + 0 = 0!
1848
yes,2 is the only no. When added and multiplied by itself gives the same result
50
-103
7
Only the number two, as any number added to itself is equal to the number x 2. Technically the number 0 would also qualify, as 0 x 2 = 0 and 0+0=0
23
28(-28)
1
0 It's the only number when added/subtracted/multiplied/divided by itself doesn't change in value.