Use the diamond box method.
x^2 | -6x
10x | -60
-60x^2
10x. -6x
4x
(x-6)(x+10)
x= 6, -10
To get the x-intercepts of the function, f(x) = 4x2 – 24x + 20
It has to be equated to zero and the values of x are the x-intercepts. So,
4x2 – 24x + 20 = 0
The resulting equation is a quadratic equation which can be solved by different methods. The solution is
x = 5, 1
The average therefore is:
(1+5/)2 = 3
Answer:
112
Step-by-step explanation:
Answer is in the attachment below.
