If: x4 = 5 Then: x = 1.4953487812
28 is.
7
yes
x4+100=29x2 x4+100-29x2=0 (X2)2+100-29x2=0 (x2-25)(x2-4)=0 (x+5)(x-5)(x+2)(x-2) x=-5 x=5 x=-2 x=2
Not necessarily.
N = x4 x8 = x4+4 = (x4)2 = N2
30 times 4 equals 120
9 x 4 = 36
5x-4 = 5 ÷ x4 or it can be written as 5/x4.
It's not, 4x4=16.
if c = x2 then cx2 = x4