You must distribute first.
8 times (3x-2)= 24x-16
2 times (12x-5.5)= 24x-11
What you have left is
(24x-16)-(24x-11)
24x-24x=0
-16- -11=-5
The answer is -5
2 real roots and 2 imaginary roots
f(x) = (x - 3)(x + 3 )(x-2 + i)(x - 2 - i)
(x - 3) and (x + 3) give real roots x = ± 3
(x - 2 + i)(x - 2 - i) give 2 imaginary roots x = 2 ± i
Think of it like this, 40 out of 100 is 40% just as 34 out of a number is 40%. So, you simply do this: 34/x=40/100, then you cross multiply and get: 40x=3400, and solve for x by dividing by 40. Giving you 85, and 34 out of 85 is 40%.
