Answer:
x=0
Step-by-step explanation:
Simplify the equation first:
-8x+14=-2(4x-7)
-8x+14=-8x-14
-8x+14+14=-8x-14+14
-8x+28=-8x
-8x+28+8x=-8x+8x
28=0
Please provide the full question so we (Brainly) can give you accurate answers.
Answer:
75%
Step-by-step explanation:
9/12 then multiply by 100 %
x-coordinates for the maximum points in any function f(x) by f'(x) =0 would be x = π/2 and x= 3π/2.
<h3>How to obtain the maximum value of a function?</h3>
To find the maximum of a continuous and twice differentiable function f(x), we can firstly differentiate it with respect to x and equating it to 0 will give us critical points.
we want to find x-coordinates for the maximum points in any function f(x) by f'(x) =0
Given f(x)= 4cos(2x -π)

In general 
from x = 0 to x = 2π :
when k =0 then x = π/2
when k =1 then x= π
when k =2 then x= 3π/2
when k =3 then x=2π
Thus, X-coordinates of maximum points are x = π/2 and x= 3π/2
Learn more about maximum of a function here:
brainly.com/question/13333267
#SPJ4