4 is the greatest common factor of 32 and 44
All you need to do is to break the value into prime factors! Here is how you should work out such problem...
840
= 4 * 210
= 2² * 21 * 10
= 2² * 7 * 3 * 5 * 2
= 2³ * 3 * 5 * 7
This is the solution of the equation, where a=1, b=-5, c=7
So the discriminant is :
b^2-4ac=25-4*7= -3
The square root of -3 is non-real, this both solutions are non-real.
5x0.10 = 0.50
1.20- 0.50 = 0,70
it is 0.50 not 50
than it is x (number of nicks) times 0.05 =0.70
so he has 14 nicles
If the parabola line crosses the x-axis twice, then it has two solutions, or the maximum/minimum of it is a point on the x-axis that means it has two solutions as a double root.
