Answer:
x^2 + 2x - 15 = 0.
Step-by-step explanation:
If you mean the equation with zeroes of 3 and -5 it is:
(x - 3)(x + 5) = 0
x^2 + 2x - 15 = 0.
There is 168 hours in 7 days
There is 144 hours in 6 days
144-42=102
He is not at work for 102 hours on a 6 day week, I think.
-1*x^2= -1
-1*(1)^2
-1*1= -1