Respuesta :
Answer:
see below
Step-by-step explanation:
|4x−4(x+1)|=4
First simplify in the absolute value
Distribute
|4x−4x-4|=4
|-4|=4
Taking the absolute value
4 =4
This is always true
X is all real numbers
Pick any value for x and it will be a true statement
x=0
|4*0−4(*0+1)|=4
|-4|=4
Let x = 5
|4*5−4(5+1)|=4
|20−24|=4
|−4|=4
Step-by-step explanation:
Step 1: Distribute
[tex]|4x-4(x+1)|=4[/tex]
[tex]|4x - (4 * x) - (4 * 1)| = 4[/tex]
[tex]|4x - 4x - 4| = 4[/tex]
[tex]|-4| = 4[/tex]
[tex]4 = 4[/tex]
Answer: All real numbers
Check, pick x = 2
[tex]|4(2) - 4(2 + 1)| = 4[/tex]
[tex]|8 - (4 * 2) - (4 * 1)| = 4[/tex]
[tex]|8 - 8 - 4| = 4[/tex]
[tex]|-4| = 4[/tex]
[tex]4 = 4[/tex]
True