Let x equal the width
let 2x equal length
2x + 2x + x + x = 7.5
6x = 7.5
x = 1.25
width = 1.25
length = 2.5
(2.5)(1.25) = 3.125
3.125 = 3 1/8
area = 3 1/8
Answer:
x=-4 and x=2
Step-by-step explanation:
You are given the function

The zeros of the function are those value of x, for which 
First, find x for which function is undefined

Now find points at which f(x)=0:

For both these values (x=-4 and x=2) function f(x) is defined, then x=-4 and x=2 are zeros of the function.
Answer:
a) (4,-2) b) (77,77)
Step-by-step explanation:
Times the brackets out and then add them or take them away