yes
9 x 4 = 36
28 is.
If there is a remainder then it's not a factor otherwise yes
N = x4 x8 = x4+4 = (x4)2 = N2
yes
9 x 4 = 36
28 is.
7
(x4 - 3)(x4 + 3)
Not necessarily.
If there is a remainder then it's not a factor otherwise yes
N = x4 x8 = x4+4 = (x4)2 = N2
30 times 4 equals 120
25 x4 =100 that's your percentage times the 9 by the same value (4) 9 x4 =36 your answer is 36%
It's not, 4x4=16.
if c = x2 then cx2 = x4