It's called a decimal.
I hope it helps.
The quantity remaining will be
.. 448*(1/2)^(24/6) = 448/16 = 28 . . . . grams
We hates fractions
times everybody by 6x
6=x²-5x
minus 6 both sides
0=x²-5x-6
factor
what 2 numbers multiply toget -6 and add to get -5
-6 and 1
0=(x-6)(x+1)
set to zero
x-6=0
x=6
x+1=0
x=-1
x=6 or -1
