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How do you get a negative number with the equation 3x+1 then use the answer for x to the 2nd power

 Aug 19, 2016
 #1
avatar+9665 
0

3x+1=1

3x=0

x=0

 

3x+1=0

3x=-1

x= -1/3

 

If the right hand side is less than 1, then x would be a negative number.

I will use 3x+1=0 as example.

You solve the equation to get x= -1/3, the work is listed above. Then square it. (-1/3)^2=1/9

 Aug 19, 2016
 #2
avatar+37084 
0

3x + 1 < 0

3x  <  -1

x  < - 1/3       so for any value of x less than -1/3 the answer to the equation will be negative

 

pick one value of 'x'    x = -2    -2^2 = 4

 Aug 19, 2016

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