Question

Solve this sentence.

| 2x + 1 | = 10

x = or x =

Answer 1

|f(x)|=a where a>0
=>
f(x)=a or f(x)=-a

Answer 2

|f(x)|=a where a<0
=> no solution

Answer 3

|f(x)|=a where a=0
=> f(x)=0

Answer 4

So which one do you have here?
1st, 2nd, or 3rd?

Answer 5

1st

Answer 6

Right since 10>0 :)
so we have |f(x)|=10
which implies f(x)=10 or f(x)=-10

Answer 7

2x+1=10 or 2x+1=-10
All you have to do is solve both of these equations for x.

Answer 8

okay i get it thank you so much

Answer 9

np :)